Bulls guard Jimmy Butler will likely undergo an MRI on his right shoulder after leaving the game in Tuesday night's game against the Kings at halftime.
The All-Star guard didn't come out of the locker room following halftime after aggravating a reoccuring shoulder strain.
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"[He'll] probably have an MRI [Wednesday]," Thibodeau said per ESPN.com. "He's got soreness, so hopefully he'll be better tomorrow."
Butler was not available to reporters after the game, but admitted as he walked through the locker room that his shoulder was hurting.