"Today I didn't feel it at all," Bonderman said. "I'm happy with that."
Bonderman was finished for the 2011 season and missed the next year due to Tommy John surgery.
"[Trainers] said my problem could be my not playing for two years and getting back in it," said Bonderman. "It got irritated from throwing again. I was glad nothing was torn."
Jason Beck is a reporter for MLB.com. Read Beck's Blog and follow him on Twitter @beckjason. Bobby Nightengale is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.