"If push comes to shove, we could probably keep him down all the way through the All-Star break," Ausmus said before Saturday's game. "But right now, we're just going to see how he feels every day."
Martinez hadn't missed a game this season before the week began.
Ausmus added that Martinez's injury should have no bearing on his status as an All-Star.
"He should make the All-Star team," Ausmus said. "I hope he does make the All-Star team. Obviously, if he's not healthy, it's a different story. He still deserves to be an All-Star, whether he's physically able to play in the All-Star Game, or not."
Martinez is leading the Tigers with a .328 batting average and 21 home runs.
Jason Beck is a reporter for MLB.com. Read Beck's Blog and follow him on Twitter @beckjason. Matt Slovin is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.