DETROIT -- Just when Tigers shortstop Edgar Renteria had shown signs of shaking off his slump, he can't shake the injury bug.

Renteria remains day-to-day after suffering a mild strain of his left hamstring during Wednesday night's win over the Indians. Renteria was out of the lineup as expected for Thursday's series opener against the Twins, replaced by Ramon Santiago, but manager Jim Leyland was optimistic that he'll return Friday night.

"He's not too bad," Leyland said. "I mean, we only got four days left [before the All-Star break]. I think he'll be fine. I'll probably play him tomorrow."

Having the All-Star break coming up should help Renteria's health, if not his hitting.

Renteria strained his hamstring trying to beat out a double-play throw in the seventh inning Wednesday. He didn't win the race, and he was clearly hobbled before heading to the dugout.

An inning earlier, Renteria had singled in Detroit's first run of the night, his second single in as many games after an 0-for-23 slump. Hitting coach Lloyd McClendon had spotted a change in Renteria's swing Tuesday, and the Tigers' coaches believed the change was going to make a difference.

"I think Edgar will have a real good second half for us offensively," Leyland said. "I think the little thing that they saw that he was doing, I think that's going to help him. It probably doesn't mean that he's completely out of the woods yet, don't get me wrong, but I think I've seen the start of something good for Edgar. Hopefully this is nothing that's going to be more than a little setback for a day."