Pirates catcher Chris Stewart suffered a wrist injury in Sunday's 4-1 loss to the Reds after going 2 for 3 at the plate, but X-rays on the injured wrist came back negative, the Pittsburgh Post-Gazette reports.
Stewart indicated that the wrist was stiff and sore after the game. His availability for Wednesday's Wild Card matchup is in doubt, and regular starting catcher Russell Martin is also banged up.