Roster

49ers linebacker NaVorro Bowman recorded five tackles and a pass defended during San Francisco's 27-13 victory over Arizona in Week 17. It was just the fourth time this season Bowman with finished with less than eight tackles as he amassed 149 total stops, a career high.

The 49ers spent three third-day draft picks on their defense, adding Notre Dame linebacker Darius Fleming, Michigan State safety Trenton Robinson and Virginia defensive end Cam Johnson. They are the only additions to the Niners' defense this offseason.

The 49ers signed defensive back Craig Dahl to a three-year contract Saturday, finding an apparent replacement after Dashon Goldson received a five-year deal from the Buccaneers last week. Dahl, 27, spent the past four seasons with the Rams and registered 78 tackles and an interception in 2012. "It's a program I'm really familiar with, players and coaches I'm familiar with how they operate and the basis of what their team fundamentals are," he said.

Garrett Celek says he's aiming to replace Delanie Walker as the No. 2 tight end in the Niners' offense this summer. The Niners added rookie Vance McDonald and veteran Cameron Morrah as competition for the 6-foot-5, 252 pounder. Starter Vernon Davis and guard Alex Boone both think Celek has what it takes to do well with more reps in practice. "He's a great player," Boone told the official team website. "He's strong. He's tough. He's got great hands and he can run block. I think that's what makes a tight end really good. When he's out there, he can make good catches for you and he can always run block and help the run game. I think he does a good job with that."

49ers running back Anthony Dixon notched his second rushing touchdown of the season in Week 14 against the Dolphins. Dixon scored on a 1-yard scamper in the fourth quarter of the 27-13 win, capping off a 13-play, 83-yard scoring drive. He finished with 9 yards rushing on two carries and had a long of 8 yards.

Arnaz Battle, Shaun Hill, Brandon Jones, Brit Miller, Brian Jennings and Jason Hill all failed to record a stat in the team's Week 16 game against the Lions.

Speaking on SiriusXM NFL Radio, Niners receiver Mario Manningham said he's feeling good and that his knee is getting stronger but has no timetable for his return. Manningham is hoping to be in the mix to help fill in for hurt Niners receiver Michael Crabtree but has to work his way back from a torn ACL first.

Knee - Questionable for start of training camp

49ers receiver Michael Crabtree tore his Achilles tendon on Tuesday and has undergone surgery. The injury now elevates Anquan Boldin to No. 1 on the depth chart. Boldin was traded to the 49ers this offseason from the Ravens but he was not in attendance for OTA workouts this week because of a prior commitment.

49ers DB Tarell Brown left Sunday's NFC Championship Game against the Giants and did not return. He was struck by Dashon Goldson on a third down play late in the third quarter as they collided going for an interception. Brown required the help of trainers to leave the field of play and was taken to the locker room for observation. Rookie DB Chris Culliver took his place and DB Tramaine Brock is the third corner.

Comcast Sports Net reports that A.J. Jenkins, Quinton Patton and Ricardo Lockette will compete during the remainder of the 49ers' offseason program to replace injured receiver Michael Crabtree (Achilles), coach Jim Harbaugh said Friday on a radio interview. "We'll put Jenkins, Patton, Ricardo Lockette at the same position and let them compete and emerge," Harbaugh said. "The good news is somebody will emerge because they have to."

The 49ers continued trimming their roster Friday in preparation for the regular season and released the following players: LB Ikaika Alama-Francis, LB Eric Bakhtiari, RB Rock Cartwright, LB Joe Holland, DT Tony Jerod-Eddie, LB Cam Johnson, QB Josh Johnson, DT Matthew Masifilo, CB Anthony Mosley, TE Kyle Nelson, WR Chris Owusu, WR Nathan Palmer, TE Konrad Reuland, LB Kenny Rowe, WR Brett Swain, S Michael Thomas and LB Michael Wilhoite.

The 49ers and cornerback Perrish Cox agreed to a two-year deal. Cox was released by the Broncos last September and was acquitted of sexual assault charges in Colorado on March 2. He said his legal trouble changed him for the better. "It was a nervous and scary situation for me," Cox said. "I take full responsibility for my actions. I just want everyone who was involved in [the case] to move on with their lives."

The 49ers signed special teams standout performer C.J. Spillman to a three-year, $6 million contract on Friday. It is his first guaranteed contract.

49ers linebacker Darius Fleming (knee) was placed on the reserve/PUP list Monday. Fleming will miss the first six weeks of the season and won't be eligible to play in a game until Week 7 against the Seahawks.

The 49ers made their third trade of the draft, this time trading up six slots to grab Rice tight end Vance McDonald. He is expected to replace Delanie Walker as the No. 2 tight end behind Vernon Davis. As a senior, McDonald was used more as a traditional tight end. He had 36 catches for 458 yards and two touchdowns last season and is a good blocker. Asked about his blocking, McDonald said via the Sacramento Bee it's a work in progress. "I know I'm very underdeveloped and I have a lot of raw potential," he said from his home Winnie, Texas. "And that's (blocking) is one area I put a lot of emphasis on."

Kendall Hunter (Achilles) and Kyle Williams (ACL) were both present for the stretch and individual drill portions of 49ers OTA workouts on Wednesday according to the San Jose Mercury News. However once team drills started both players went to side fields for conditioning work with trainers. "I’m not going to comment on the timetable. But, they’re progressing really well," coach Jim Harbaugh said of both players as they continue to rehab from their injuries.

Achilles - Probable for start of training camp

The following players were cut by the Raiders Friday: LB Kaelin Burnett, K Eddy Carmona, WR Derek Carrier, WR Brandon Carswell, DE Hall Davis, TE Kyle Efaw, DL Dominique Hamilton, LB Chad Kilgore, WR Eddie McGee, RB Lonyae Miller, WR Roscoe Parrish, WR Travionte Session, LB Nathan Stupar and S Curtis Taylor.

The 49ers placed defensive lineman Demarcus Dobbs (knee) on injured reserve Tuesday.

The Cleveland Plain Dealer reports that the 49ers signed former Browns kicker Phil Dawson on Tuesday. Dawson wrote on his Twitter account: "Hey, Cleveland. Thank you for a tremendous ride. Your love, support and encouragement have blessed me deeply." The 38-year-old Dawson made his first Pro Bowl last season, converting 29 of 31 attempts. His conversion percentage (93.5) ranked second among NFL kickers in 2012.

The 49ers selected Auburn defensive end Corey Lemonier with the 88th pick in the NFL draft, moving up five spots after their second deal of the day with the NFC rival Green Bay Packers. This selection further upgrades San Francisco's pass rush as they looked to fill voids on the defensive line. Lemonier, who skipped his senior season to enter the draft, had 5.5 sacks last season after earning coaches' first-team All-Southeastern Conference honors with 9.5 sacks as a sophomore. The 6-foot-4, 246-pound Lemonier played in 34 career games, making 24 starts. He finished his Auburn career with 98 tackles, 17 sacks, 24 tackles for loss and 33 quarterback hurries.

49ers defensive back Donte Whitner found the end zone for the first time this season in Week 12 against the Saints. Whitner stepped in front of a Drew Bress pass attempt and returned it 42 yards for a touchdown in the the third quarter. It was his first interception of the season and eighth of his career. He finished with eight tackles -- five solo -- in the 31-21 win and was also credited with a pass defended.

San Francisco elevated defensive lineman Tony Jerod-Eddie to the active roster Friday after placing wide receiver Mario Manningham on injured reserve. Jerod-Eddie will provide depth on the defensive line for the 49ers, who will be without Justin Smith (triceps) for Week 17.

Comcast Sports Net reports that A.J. Jenkins, Quinton Patton and Ricardo Lockette will compete during the remainder of the 49ers' offseason program to replace injured receiver Michael Crabtree (Achilles), coach Jim Harbaugh said Friday on a radio interview. "We'll put Jenkins, Patton, Ricardo Lockette at the same position and let them compete and emerge," Harbaugh said. "The good news is somebody will emerge because they have to."

San Francisco defensive back Chris Culliver recorded his first interception of the year during Sunday's Week 5 contest against the Bills. Culliver picked off Ryan Fitzpatrick in the third quarter and finished with two tackles (one solo) in a 45-3 victory. “It felt good to come through for my team,” said Culliver. “First and foremost we’re trusting Coach Vic (Fangio) to put us in the right call, and that’s why we’re always in position to make big plays.”

The 49ers signed Darcel McBath to a one-year deal on Monday. They plan to use him as a cornerback.

49ers head coach Jim Harbaugh indicated that Michael Crabtree's torn right Achilles will not cost him the entire season. With surgery already done, it is believed Crabtree will return within six months. Linebacker Patrick Willis said Crabtree went down after making a "simple, normal cut" after going in motion and before starting his route during 7 on 7 drills. "Crab is one of those tough guys. He can get hit hard, and he'll bounce right back up," Willis told the San Jose Mercury News. "Yesterday he stayed down a little longer than normal. You say a little prayer and hope it wasn't as bad as it looked. Unfortunately it is."

Achilles - Out for start of training camp. Questionable to play in 2013 season

Comcast Sportsnet believes that if running back Kendall Hunter is healthy for training camp he'll be the "clear-cut No. 2 running back" behind Frank Gore. Hunter tore his Achilles in late November and was replaced by rookie LaMichael James.

The 49ers placed linebacker Parys Haralson on season-ending injured reserve Monday with an apparent left arm injury, according to the San Jose Mercury News. Haralson suffered the injury during San Francisco's third exhibition game and missed the preseason finale. The 49ers signed linebacker Clark Haggans on Sunday to take his place on the active roster.

San Francisco defensive back Carlos Rogers recorded two tackles and recovered two fumbles, including one he returned for a 51-yard touchdown during the fourth quarter, of the 49ers' 34-0 win over the Jets. It was his second touchdown in as many seasons with San Francisco.

CBSSports.com NFL Insider Jason La Canfora reports the 49ers have acquired quarterback Colt McCoy from the Browns in exchange for a late-round draft pick.

ESPN reports the Niners have signed tight end Cameron Morrah. He didn't play football in 2012 and has no career touchdowns from 2009 to 2011.

The 49ers activated running back Jewel Hampton off the non-football injury list Tuesday.

The San Francisco Chronicle reports Niners linebacker Aldon Smith isn't sure if he'll be cleared in time for the start of training camp after having surgery to fix a torn labrum in his shoulder earlier this offseason.

Shoulder - Questionable for start of training camp

Kendall Hunter (Achilles) and Kyle Williams (ACL) were both present for the stretch and individual drill portions of 49ers OTA workouts on Wednesday according to the San Jose Mercury News. However once team drills started both players went to side fields for conditioning work with trainers. "I’m not going to comment on the timetable. But, they’re progressing really well," coach Jim Harbaugh said of both players as they continue to rehab from their injuries.

Knee - Questionable for start of training camp

Niners running back Frank Gore stretched with the team and did individual drills before sitting out the rest of OTA practice on Wednesday according to the San Jose Mercury News. He did not appear injured.

When asked about sitting out the 2013 season because of a knee injury suffered in college, 49ers rookie running back Marcus Lattimore told the San Francisco Chronicle "I think that would be fine." Coach Jim Harbaugh said the right knee "looks good structurally" but warned against a quick return. Lattimore suffered a dislocated right knee cap with three torn ligaments in a vicious play last October, ending his collegiate career after deciding to turn pro.

Knee - Doubtful for 2013 season

San Francisco linebacker Clark Haggans was forced out of Sunday's contest at New England in Week 15 with an apparent shoulder injury. Haggans sustained the injury in the second half and did not return to the game. He failed to record a tackle on the night.

The 49ers have signed defensive lineman Glenn Dorsey.

The 49ers continued trimming their roster Friday in preparation for the regular season and released the following players: LB Ikaika Alama-Francis, LB Eric Bakhtiari, RB Rock Cartwright, LB Joe Holland, DT Tony Jerod-Eddie, LB Cam Johnson, QB Josh Johnson, DT Matthew Masifilo, CB Anthony Mosley, TE Kyle Nelson, WR Chris Owusu, WR Nathan Palmer, TE Konrad Reuland, LB Kenny Rowe, WR Brett Swain, S Michael Thomas and LB Michael Wilhoite.

San Francisco FB/LB Bruce Miller caught his first-career touchdown pass on Sunday of Week 9 in Washington. Miller caught a 30-yard strike down the left sideline with just over a minute to play in the first half against the Redskins. Quarterback Alex Smith found Miller streaking open following a lost fumble by the Redskins. It was Miller's, a former Conference USA Defensive Player of the Year for UCF, first catch of the season.

The 49ers announced on Monday that DL Will Tukuafu will miss the remainder of the season. He was injured during Week 4 against the Eagles, although his injury has yet to be disclosed.

San Francisco DL Ray McDonald had a season high seven tackles, including five solo stops, during the 49ers' 16-6 loss to Baltimore in Week 12 on Thursday night. McDonald also finished one tackle shy of the team lead shared by Patrick Willis and NaVorro Bowman.

Rookie QB Scott Tolzien, who the 49ers claimed off waivers from the Chargers Sunday, was signed as an undrafted rookie out of Wisconsin. He completed 72.9 percent of his passes last season for the Badgers, a single-season record, and also holds school records in career completion percentage (68.1) and single-season completions (211 in 2009).

CBSSports.com NFL Insider Mike Freeman reports that the 49ers haven't contacted free agent receiver Randy Moss following the injury to Michael Crabtree (Achilles). Freeman reports that Moss left the 49ers on good terms following his one season there in 2012.

Veteran running back Brian Westbrook will officially retire as a member of the Eagles on Wednesday, the franchise he shined with for eight seasons. Westbrook excelled with Philadelphia from 2002-09, becoming the franchise leader with 9,785 total yards from scrimmage. He also ranks second in yards rushing (5,995), and third in receptions (426) and total touchdowns (68).

49ers linebacker Patrick Willis matched a season low with four tackles, including one for a loss, during San Francisco's 27-13 win over Arizona in Week 17. Despite being held to less than five stops twice in his last five games, Willis still topped 100 total tackles on the season (120).

The NFL has suspended linebacker Larry Grant for the first four games of the 2013 season for violating their policy on performance-enhancing substances.

Suspension - Eligible to return Week 5 vs. Houston

Florida State players continue to be a popular choice in the 2013 NFL Draft with the 49ers taking former Seminole defensive lineman Cornellius "Tank" Carradine 40th overall in the second round of Friday's NFL Draft. Carradine is the fourth Florida State player taken in the draft's first 40 picks. The 49ers selection of Carrardine comes with some risk: the 24-year-old tore his ACL in a November loss to Florida. However, Carradine's rehab went well enough that he was able to participate in a pro day on April 20. Carradine reportedly ran a 4.93 40, an impressive number considering he was only five months removed from surgery. Before suffering the ACL injury, Carradine had been on a tear. During a three-game stretch in November where Florida State played Virginia Tech, Maryland and Florida, Carradine tallied a total of 27 tackles and three sacks. Despite missing Florida State's final two games last season, Carradine still managed to finish second on the team in both sacks (11) and tackles for a loss (13).

The 49ers continued trimming their roster Friday in preparation for the regular season and released the following players: LB Ikaika Alama-Francis, LB Eric Bakhtiari, RB Rock Cartwright, LB Joe Holland, DT Tony Jerod-Eddie, LB Cam Johnson, QB Josh Johnson, DT Matthew Masifilo, CB Anthony Mosley, TE Kyle Nelson, WR Chris Owusu, WR Nathan Palmer, TE Konrad Reuland, LB Kenny Rowe, WR Brett Swain, S Michael Thomas and LB Michael Wilhoite.

The 49ers continued trimming their roster Friday in preparation for the regular season and released the following players: LB Ikaika Alama-Francis, LB Eric Bakhtiari, RB Rock Cartwright, LB Joe Holland, DT Tony Jerod-Eddie, LB Cam Johnson, QB Josh Johnson, DT Matthew Masifilo, CB Anthony Mosley, TE Kyle Nelson, WR Chris Owusu, WR Nathan Palmer, TE Konrad Reuland, LB Kenny Rowe, WR Brett Swain, S Michael Thomas and LB Michael Wilhoite.

San Francisco DB Tramaine Brock injured his left hand on Sunday against Dallas. He eventually returned to the game only to fall down on a play that led to a Miles Austin touchdown. Brock would redeem himself with four tackles and a key interception, but the 49ers would still lose the game 27-24.

The 49ers announced Friday afternoon that they have waived kicker Billy Cundiff, just 17 days after signing the 32-year-old after Week 17. Cundiff was brought in to compete against struggling David Akers, but failed to earn the starting nod.

The man known as “Cowboy” wasn't going to miss the Super Bowl. But maybe Justin Smith should have sat out. Limited by a partially torn left triceps, the 49ers' defensive end struggled. Smith finished with three tackles -- with no quarterback hurries, hits or sacks. Now comes word, via Comcast Sports Net, that the 33-year-old Smith will undergo surgery this week and need three months of rehab. The four-time Pro Bowler suffered the injury Dec. 16 against New England and missed the rest of the regular season. He returned for the playoffs wearing a brace on his left arm.

Triceps - Questionable for start of training camp

The 49ers, not content with finishing as the bridesmaid in last year's Super Bowl, took a risk on a former pro bowler to bolster their secondary Tuesday. The Niners signed former Eagles defensive back Nnamdi Asomugha to a one-year contract.

USA Today reports 49ers receiver Michael Crabtree tore his Achilles tendon on Tuesday and will undergo surgery. It is not known if he will try to play this season. That's a tough blow for quarterback Colin Kaepernick since Crabtree was clearly his No. 1 receiver. The San Francisco Chronicle reports that in Kaepernick's 10 starts in 2012 he targeted Crabtree more than any other receiver. The target breakdown was Crabtree with 94, Vernon Davis with 39 and Randy Moss with 39.

A bone-jarring tackler who can sometimes be too aggressive, former LSU free safety Eric Reid was taken by the 49ers with the No. 18 overall pick in the first round of the NFL Draft on Thursday. The defending NFC champs traded the 31st and 74th overall picks to the Cowboys to move up and snag Reid, who could replace Dashon Goldson. CBSSports.com's Rob Rang said Reid “might be the explosive hitter from the safety position in the 2013 draft, closing with the speed and physicality of a linebacker rather than a defensive back.” But Rang said Reid's greatest strength is also his biggest weakness. “He plays with nonstop aggressiveness and intensity, but he doesn't always control that hostility in a smart way,” Rang said.

The 49ers announced a contract extension for nose tackle Ian Williams.

The 49ers promoted wide receiver Chad Hall from the practice squad Saturday, giving them added depth at the position for the NFC Championship showdown at Atlanta. Hall has spent most of the season on the practice squad after being released by Philadelphia in the preseason.

Scout.com reports Sunday that LB Tavares Gooden, who was cut by the Ravens on Saturday, agreed to terms with the 49ers. Terms of the one-year deal were not disclosed. Gooden played mostly as a reserve the last three years in Baltimore.

USA Today reports 49ers receiver Michael Crabtree tore his Achilles tendon on Tuesday and will undergo surgery. It is not known if he will try to play this season. While this injury hurts the 49ers, it should help tight end Vernon Davis, who could become the No. 1 option now for quarterback Colin Kaepernick.

On Monday, the 49ers waived fullback Cameron Bell, linebacker Kourtnei Brown, defensive tackle Patrick Butrym, wide reciever Ben Hannula, wide receiver Joe Hastings, defensive tackle Matthew Masifilo, cornerback Cory Nelms, cornerback Deante’ Purvis, tight end Joe Sawyer, kicker Giorgio Tavecchio and wide receiver Brian Tyms.

Free agent wide receiver Marlon Moore signed a one-year contract with the 49ers Tuesday, after spending three seasons with the Dolphins. Moore has caught three passes in his career for 244 yards, with a pair of touchdowns.

Notable Titans players cut on Friday include: WR Devin Aguilar, TE Brandon Barden, DT Zach Clayton, NT Lamar Divens, DB Aaron Francisco, TE Cameron Graham, CB Chris Hawkins, WR James Kirkendoll, FB Collin Mooney, WR Michael Preston, DT Malcolm Sheppard, DB Tracy Wilson and WR D.J. Woods.

Comcast Sports Net reports that A.J. Jenkins, Quinton Patton and Ricardo Lockette will compete during the remainder of the 49ers' offseason program to replace injured receiver Michael Crabtree (Achilles), coach Jim Harbaugh said Friday on a radio interview. "We'll put Jenkins, Patton, Ricardo Lockette at the same position and let them compete and emerge," Harbaugh said. "The good news is somebody will emerge because they have to."

49ers linebacker Ahmad Brooks recorded his first career touchdown in Week 12 against the Saints. Brooks stepped in front of a Drew Brees pass attempt just before halftime and returned it 50 yards for a touchdown. It was his first interception of the season and second of his career. Brooks also was credited with 1.5 sacks in the 31-21 win to go along with five tackles and a pass defended.

Bengals LB Rey Maualuga will not play Week 6 against the Colts, according to coach Marvin Lewis. The Bengals' middle linebacker sprained his ankle in practice this week. Lewis didn't give a timetable on his return other than the fact he won't play against Indianapolis. LB Dan Skuta will earn his first career start in his place.