Rays' reliever Troy Percival could be headed to the disabled list because of a bum left hamstring, according to The Tampa Tribune. "He came in today saying he was feeling very good, actually," Rays' Manager Joe Maddon said Wednesday, "maybe the best day he's had in regard to how he was feeling since the last time it occurred." His left hamstring tightened up on his during a save situation last Tuesday against the Athletics. The Rays will wait until Thursday to make a decision on his status, and the way he feels will play a significant factor, but Percival could still be headed to the disabled list. He has pitched twice since feeling the tightness, pitching 1.2 scoreless innings in the team's weekend series with the Orioles.