"Right now, it's not in there anymore," Pierzynski said. "There has been no pain or lingering effects. The whole key was to do the rehab work and make sure there are no lingering effects. It's good.
"I'm not going to change anything. It's one of those things that happened. It's not something that I can control. I didn't go out and do anything crazy. The trainers did a great job, so hopefully it's behind me."
To make room for Pierzynski, the Rangers optioned catcher Robinson Chirinos to Triple-A Round Rock.
T.R. Sullivan is a reporter for MLB.com. Read his blog, Postcards from Elysian Fields, and follow him on Twitter @Sullivan_Ranger. This story was not subject to the approval of Major League Baseball or its clubs.