Adam Wainwright will pitch on regular rest Friday when the St. Louis Cardinals open a road trip in Philadelphia.
The move will push back Shelby Miller, who was scheduled to pitch Friday, to Saturday, leading to him receiving two extra days of rest.
"It's more (about) keeping Adam on regular rest," Cardinals manager Mike Matheny said. "We like seeing him out there."
Wainwright (15-7, 2.40 ERA) will oppose Kyle Kendrick (5-11, 4.90 ERA) at 6:05 p.m. Friday. Miller (8-9, 4.25 ERA) will pitch against David Buchanon (6-7, 4.25 ERA) at 6:05 p.m. Saturday, and Justin Masterson (6-7, 5.64 ERA) will pitch against Jerome Williams (1-0, 2.19 ERA) at 12:35 p.m. Sunday.
The flip-flop will put Wainwright back on the mound at 11:35 a.m. Wednesday against Pittsburgh in the finale of the road trip. After another off day Aug. 28, Miller will pitch Aug. 29 in the opener of a six-game homestand against the Chicago Cubs.
Jhonny Peralta apologized for being unavailable to comment Tuesday night after he set a single-season record for Cardinals shortstops with his 17th home run.
On further reflection, Peralta on Wednesday said he was "proud and really happy."
Peralta's next goal is 20 homers, something he's accomplished four times already: 2005, 2007, 2008 and 2011.
"I don't try to put a goal, but if I hit 20, I feel really happy," he said. "I don't try to go in the field and try to hit a home run. Whatever happens in the game is going to happen. I try to do the best for the team. If I hit 20 or more, it would be really good.
"I try to go up to home plate and make good contact with the ball. With the swing that I have and the contact that I have, it's good for home runs. But I don't try to hit a homer."
Peralta also has 33 doubles, giving him 50 extra-base hits.
"I always hit a lot of doubles," he said. "It's good that I hit a lot of doubles. I've hit the ball in the gap all the time."
Jay plunked again
Jon Jay was hit by a pitch for the 16th time in the first inning Wednesday. Jay was hit by a pitch with the bases loaded in the ninth Tuesday as the Cardinals nipped Cincinnati 5-4.
"I remember (Fernado) Vina used to get hit all of the time, but he was a guy who used to take a lot of pride at just staying in there," Matheny said. "These balls that are hitting Jon, he looks like he's trying to get out of the way. They're just heat-seeking missiles.
"Even though he's not getting hit in the elbow or the wrist, that stuff hurts. He's tough. I don't care where you get hit. All of them hurt."
Jay, who also extended his hitting streak to 12 games Wednesday, was hit six times in the final six games of the homestand.
A.J. Pierzynski and Greg Garcia switched uniform numbers Wednesday after receiving permission from Major League Baseball.
Pierzynski took No. 12 from Garcia, who received No. 35.