McGehee received a cortisone shot besides undergoing an MRI late Saturday night and will have to rest for at least 24 hours due to the injection. Manager Bruce Bochy estimated McGehee will rejoin the lineup in a couple of days. Given the Giants' worst fears, his relatively brief absence will be a minor inconvience.
"All things considered, I feel really fortunate," said McGehee, who was replaced at third base by Matt Duffy in Sunday's series finale against the San Diego Padres. "I really feel like once we get the bruise calmed down, it'll feel pretty normal."
McGehee, 32, said he originally hurt himself in Monday's season opener at Arizona. He explained a ground ball bounced behind him, forcing him to change direction quickly. Since then, he said, "obviously I felt like I was plenty good enough to try to play. At times it barked a little bit, but before the game yesterday I actually felt pretty darned good."
Acquired in a December trade from Miami, McGehee is batting .238 with one home run and two RBIs.
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.