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08/25/12 4:25 PM ET

For now, Kelly to replace Lynn in Cards' rotation

CINCINNATI -- After the way things unfolded Friday night in Cincinnati, the Cardinals announced Saturday that Joe Kelly will be returning to the club's starting rotation, replacing Lance Lynn.

Lynn has faced some relative struggles of late and was pulled after just two-plus innings in the Cardinals' 8-5 win over the Reds. He gave up four runs on six hits before being replaced by Kelly, who shined in his three innings of work, giving up one run on four hits while striking out six.

Lynn hasn't earned a win in a month but holds a 13-5 record with a 3.93 ERA, and manager Mike Matheny assured that this won't be the end of the road for the 25-year-old righty.

"We want Lance to stay sharp," said Matheny, who added that the move is only confirmed for one start. "We never know how this stuff works out. We'll give him a little bit of time here to get things right. He could be one of the most important pieces out there every fifth day and could be one of the most important pieces of the bullpen, too."

Lynn started the season 8-1 with a 2.54 ERA but is 0-1 with a 6.56 ERA in five August starts.

"These are some of the greatest learning experiences for a young pitcher," Matheny said. "He really just dominated the first half of this season with very few trials. Those trials and those struggles and the perseverance you develop through those define you as a pitcher in your career moving forward."

The rotation isn't a new spot for Kelly, who has made 12 starts this season, as recently as Aug. 14.

Kelly, who was thrust into Friday night's game on short notice, is 3-5 with a .375 ERA as a starter this season after making the first start of his career June 10.

"When I first started starting it didn't take much for me to get hot," said Kelly, who has made 11 quality starts this season. "I end up throwing more pitches to get a better routine, though, to become a starter. Whether you're doing bullpen or starting, you want to [have] damage control as much as you can and whenever you can."

Lynn has had early-inning issues haunt him this season and struggled with his command recently but said Saturday he's ready to pitch.

"It's a work in progress and we're still working," Lynn said. "We'll get better."

Freese sits day after taking pitch, grounder off wrist

CINCINNATI -- Cardinals third baseman David Freese left Friday night's 8-5 win over the Reds entering the ninth inning after taking a quick grounder from Zack Cozart off his left wrist in the bottom of the eighth. The wrist was hit by an Alfredo Simon pitch an inning earlier.

Cardinals manager Mike Matheny said Freese could barely keep his glove on following the play and called for Ryan Jackson to pinch-hit for Freese in the ninth. Daniel Descalso took over at third base in the field.

Freese was left out of the lineup Saturday, and Matheny said the club will continue to monitor Freese's wrist.

"We're going to wait and watch him do his work in the cage and see if he can get it figured out," Matheny said. "It looks better today. The trainers did a nice job of getting right on top of it. It does look better than I thought it was going to, because it looked nasty yesterday. The ball almost took his glove off on the play at third."

Matt Carpenter got the start at third base for the Cardinals on Saturday.

Molina gets breather, day to day with sore ankle

CINCINNATI -- Cardinals catcher Yadier Molina was left out of Saturday's lineup against the Reds, nursing a sore ankle he rolled earlier in the week.

Cardinals manager Mike Matheny said Molina, who is getting his first rest in four games, has played through the pain the past few days.

"He rolled it two days ago, and it seemed to tighten up and swell on him [Friday]," Matheny said. "He's just been pushing through."

Molina put the Cardinals ahead with his solo home run in the sixth inning of Friday night's 8-5 win as part of his 3-for-5 outing.

When asked if Molina would be out for an extended period of time, Matheny said the club was basically taking it day by day.

"We don't know," he said.

Worth noting

• Lance Berkman, recovering from injuries in both knees, began his rehab stint Friday night in Triple-A Memphis, playing five innings in the field and making three plate appearances. He was 0-for-2 with a walk, two groundouts and a run scored.

Mark Clements is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.