(9:37 pm ET) Blue Jays first baseman Edwin Encarnacion slammed home run No. 19 Tuesday night in an 8-3 win over the Rockies. 

Encarnacion went deep in the fifth inning off starter Jeff Francis for a two-run shot. He added an RBI double in the first inning and drove in three runs. 

Encarnacion finished 2 for 4 with two runs scored and is batting .268 for the year. He's hit in eight of his last 10 games with two homers, four doubles and eight RBI over that span. He's driven in 58 runs this year. 

(7:40 pm ET) Red Sox first baseman Mike Napoli started the day doubleheader game against Tampa Bay Tuesday. Napoli, who had missed the previous three games due to an illness, was not in the lineup for the nightcap. 

Napoli went 1 for 3 in his return to the lineup with a single and a walk. He's batting .263 on the season with nine homers and 49 RBI. 

(5:34 pm ET) The Mariners have officially activated first baseman Justin Smoak from the 15-day disabled list prior to Tuesday's game against the Angels. Smoak, who had been on the disabled list since May 30 with a strained oblique, hit .240/.350/.344 with three homers and eight RBI in 46 games.

(5:08 pm ET) The Rangers optioned first baseman Chris McGuiness down to Triple-A Round Rock Tuesday. McGuiness hit .176 (6 for 34) with 13 strikeouts while in the majors. He had a .275 batting average in 55 games in the minors.

(4:13 pm ET) Having played just 15 games since his lengthy disabled list stint, Mark Teixeira's wrist injury has landed him back on the DL. Fantasy owners, who were already wary of the Yankees first baseman, may be tempted to drop him, but that would be premature.

Season-ending surgery is still in the picture for Teixeira, but a major factor for his current DL stay is the cortisone shot that he received that was going to sideline him for a week or more, according to the New York Daily News. Though surgery is a possibility, so is recovery, and a healthy Teixeira is a top 10 first baseman. He showed a little of that potential in his first five games this season, when he went 4 for 15 with two home runs and three walks.

Given the risk of Teixeira missing more than just a couple of weeks and the possibility of subpar performance, I have dropped him to 16th in my first baseman rankings. If things take a turn for the worse, I'll drop him further, but for now, there's no reason why Teixeira shouldn't be stashed.

(3:00 pm ET) Yankees first baseman Mark Teixeira will be placed on the disabled list due to his wrist injury.

The team had been contemplating the move, and decided a stint on the DL would help Teixeira. The Yankees will bring back pitcher Adam Warren to take his spot on the roster. There's no indication whether Teixeira will be out more than 15 days. 

Teixeira was hitting .151/.270/.340 in 53 at-bats. 

(10:40 am ET) Yankees hitting coach Kevin Long said first baseman Mark Teixeira wasn't right when he came off the disabled list. 

General manager Brian Cashman expressed displeasure with Long for voicing his opinion too late. "It’s alarming in the fact that K-Long would say that to the group of the reporters, but he never said that prior to that," Cashman said. "If K-Long felt that way he should have been saying that from Day 1, but we never heard that from K-Long."

Teixeira has been placed on the disabled list again with another wrist injury. He was hitting just .151/.270/.340 in 53 at-bats. 

(10:05 am ET) Red Sox first baseman Mike Napoli is in the team's starting lineup Tuesday against the Rays.

Napoli has missed the last three games due to an illness. He'll return and hit fifth in the first game of Tuesday's doubleheader. Napoli is hitting .262/.347/.467 in 244 at-bats. 

(9:00 am ET) Yankees first baseman Mark Teixeira could wind up on the disabled list for his wrist injury, and season-ending surgery is possible if the problem doesn't get better with rest, according to the New York Post. 

Yankees general manager Brian Cashman said he would give Teixeira time to rest the wrist, but admitted this could lead to surgery if it continues to be an issue.

"Is this something that is a recurring theme because of the previous injury [torn tendon sheath] that is going to prevent him from being all he can be? If that’s the case, he will have to have the surgery," Cashman said. He said the injury is likely related to the one that kept Teixeira out the first two months of the season.

Teixeira is hitting .151/.270/.340 in 53 at-bats. 

(1:36 am ET) The Mariners are in the process of activating first baseman Justin Smoak off the disabled list to join the team for Tuesday's game against the Angels, the Seattle Times reports. This is not official yet. 

Smoak went 2 for 5 with a double and run scored in his fifth rehab game with Triple-A Tacoma Monday. He has been out since May 30 with a strained oblique muscle.