Skip Schumaker and Matt Carpenter will play in a rehab game with Triple-A Memphis on Thursday night. Schumaker played five innings with Memphis on Wednesday while testing out a strained right hamstring, and Carpenter will see his first live action since straining his right oblique on May 23.
Matheny said Schumaker will likely play seven innings, rest a day, and then play a full game with Memphis. Carpenter will play some at first, third and the corner outfield positions.
Cardinals general manager John Mozeliak said Thursday that Schumaker and Carpenter are expected to rejoin the Cardinals for their next road trip beginning on Tuesday, if all goes well.
Matheny caught Giants right-hander Matt Cain's Major League debut on Aug. 29, 2005. Matheny helped Cain through five innings of three-hit ball in a hard-fought, 2-1 loss against Colorado that day.
Matheny watched the highlights of Cain's perfect game on Wednesday night against the Astros -- the 22nd in Major League history and first ever for the Giants -- and on Thursday reflected on Cain's progression throughout his career.
"I've been a big fan of Matt Cain, not just as a pitcher but the young player he was coming up doing everything right like we've seen some of the guys in this clubhouse, stick their nose down, seen not heard," Matheny said. "When they were heard it was asking questions, respecting the game, respecting the guys who have been around a while. He did everything right, and you could just see when he got on the mound he carried himself like a veteran."
Daniel Descalso made his fourth appearance of the season in the two-hole on Thursday. Descalso, who's hitting .224 this season, is 3-for-14 with a homer when hitting second this year.