Don Mattingly hurt his right calf while working out Wednesday, forcing him to move his pregame session with reporters to the clubhouse as opposed to the usual dugout.
Mattingly, who was walking slowly with a limp, said he heard a pop while stretching and joked that team trainer Sue Falsone is going to send out a press release.
"It's not like I have to go play, so that's a good thing," Mattingly said with a laugh.
As to whether he would be able to dispute any plays on the field, the manager joked that he wasn't sure before saying "not really."
That might be a good thing for Mattingly, who paid a $500 fine for arguing a call at first base Monday night when umpire Todd Tichenor called first baseman James Loney off the bag.