Freeman, 27, appeared in 44 games for the Cardinals last season. He posted a 2.61 ERA, a 1.39 WHIP and 35:19 K:BB ratio over 38 innings of work. He has allowed a .758 OPS against left-handed hitters during his three-year run with the Cardinals.
Jansen has worn the boot since he underwent surgery to remove a growth from a bone in his left foot in mid-February. He will start the season on the disabled list.
Parnell is recovering from Tommy John surgery a year ago and was slowed by a groin injury during spring training. The team is aiming for a May 1 return date.
Parnell will pitch in a minor league game on Sunday and believes he'll be back by mid-April.
"Make sure you get your tickets," Parnell said to ESPN's Adam Rubin.
Black, who has been sidelined since mid-March with the injury, told reporters he feels fine and is scheduled for another session on Monday. Earlier this week pitching coach Dan Warthen said Black is "right on the cusp" of being ready for Opening Day.
"It was like an out-of-body experience," he said Friday. "Just one of those oddity nights. I was sharp until I got into put-away counts, then it was brutal. Absolutely brutal."
Manager Walt Weiss isn't concerned about his appearance and thinks it was more of an aberration.
"There's been enough positive signs in spring to feel good about where he is," Weiss said. "But fact of the matter is, that stuff is always right around the corner. Not just him, but anybody."
"I think coming into it, we're counting on him to pitch some high-leverage innings," Roenicke said Friday. "He's going to be a huge part of that bullpen and what we do and how I match up the seventh and eighth inning. He's going to be important."
Smith has a 0.87 ERA in eight appearances this spring and posted a 3.70 ERA in 78 games last season.
"My last two outings I felt really good out there, really strong," Smith said on Friday. "Me and the catchers are on the same page for everything now. I think I'm good to go now."
Diekman entered a scoreless game in the fifth inning and promptly gave up a double and four singles before recording an out. He ended up allowing seven runs in one third of an inning.
"I fell behind in counts and every strike I threw they took a good swing at," Diekman said, per CSN Philly. "It’s embarrassing. ... It's unbelievable."
Despite his 12.27 ERA, Diekman got a vote of confidence from manager Ryne Sandberg. "There’s no concern," he said.