MINNEAPOLIS -- Right-hander Scott Baker, who is currently on the 15-day disabled list with a strained right groin muscle, threw his second bullpen session as part of a rehab stint in Fort Myers, Fla., on Monday.

During the session, Baker still felt something in his groin muscle, and Twins manager Ron Gardenhire said that until that issue is completely resolved, Baker will remain at this stage in his rehab program.

Baker had originally been scheduled to follow Monday's workout with a live batting practice session, but now Baker will toss another bullpen session to see whether he then feels anything in the groin.

"He will not move on to the next phase until he feels nothing," Gardenhire said.

Baker originally injured the groin muscle in a start against the Rangers on April 26, and tweaked the groin again seven days later while facing the Tigers. The right hander is 2-0 with a 4.09 ERA in six starts, and was placed on the DL shortly after the outing against Detroit.