Robert Gsellman left Tuesday night's game in the fourth inning with a left hamstring strain.
He is expected to miss at least two-to-three weeks, though how long he's out will ultimately depend on the severity of the strain. In either case, it means both Tyler Pill and Rafael Montero could be in the team's rotation at the same time, depending on if Zack Wheeler is ready to return from the DL for Saturday.
I don't blame you for being confused. I'm confused. The roster is impossible to track.