SS Jason Bartlett experienced some soreness in his right hamstring during light drills on Tuesday and manager Joe Maddon said it's now a "50-50 proposition" if Bartlett ends up going on the 15-day disabled list.

"It wasn't awful, but it wasn't as good as we had hoped it would be today either,'' Maddon said.

Bartlett sustained what the Rays called a mild strain during Saturday's game, but felt better with rest and said he hoped to resume light activity today and Wednesday and return to the lineup on Friday in Texas.

But Bartlett felt "a little bit sore," specifically in making lateral movements, on Tuesday. Maddon said a Friday return is now unlikely, and Maddon, head athletic trainer Ron Porterfield and other team officials now would discuss the possibility of putting Bartlett on the DL.

"I would doubt that he would be able to start against the Rangers,'' Maddon said. "We're going to have to have that discussion. I'm not 100 percent sure, it's like a 50-50 proposition which way it's going to trend right now.''

Bartlett, in limted comments to reporters before Maddon spoke, said he was "still getting better" and had "no setbacks.''