"I think he's excited for the fact that he got his elbow cleaned out," Bochy said of Cain, 29.
Bochy related that Cain saved some of the bone fragments in a jar, as players often do. Cain pitched successfully with the chips in his elbow for years.
"It's amazing this guy was pitching, when you look at the jar," Bochy said.
In other injury-related news, Bochy said that catcher Hector Sanchez, whose recovery from post-concussion syndrome was slowed recently when he was struck by another dangerous foul tip, was expected to serve as Triple-A Fresno's designated hitter Tuesday night and go back behind the plate Wednesday. Both games are against Oklahoma City.
Chris Haft is a reporter for MLB.com. Read his blog, Haft-Baked Ideas, and follow him on Twitter at @sfgiantsbeat. This story was not subject to the approval of Major League Baseball or its clubs.