ST. LOUIS -- The Cardinals and Pirates finished their series opener on Tuesday with an umpiring crew of three after CB Bucknor exited with an undisclosed injury in the seventh inning.
Bucknor, who was assigned to home plate, was in obvious discomfort, stepping away a few times in the seventh. At one point the Cardinals' trainer came out to visit with Bucknor, who was joined by the rest of the umpiring crew during the discussion.
A few minutes later, Bucknor asked second-base umpire Dan Iassogna to return to the dressing room, where Iassogna put on his plate gear.
When the Pirates made a pitching change during the bottom half of the inning, Iassogna took Bucknor's place behind the plate. Bucknor did not return.