Isringhausen threw in the bullpen, and general manager Walt Jocketty and pitching coach Bryan Price were among those impressed by the efforts of the Cardinals' 37-year-old former closer.
"He looked good," Jocketty said before Tuesday night's game. "He's a long ways from being able to pitch in a game, but he looked good, and ... he looked like he's healthy. He's going to have to go out and pitch for a while. I've got a call into his agent to talk to him and see what happens."
Jocketty was St. Louis' general manager while Isringhausen was in the Cardinals' bullpen, from 2002 to 2008. During that time, Isringhausen notched 217 saves and posted a 2.98 ERA. He last pitched in June 2009, for the Rays, before needing Tommy John surgery on his right elbow.
"I'd anticipate he's pleased with how well he threw in front of the staff," Price said. "It looks like he could go out and pitch somewhere. He threw like almost 40 pitches, 35 to 38 pitches. It didn't take him long to get loose and ready, four or five minutes of catch, and then he was getting after it. He looked very healthy to me."