McCarthy came off the bench and entered Sunday's 5-1 win over the Rockies after Alek Thomas was removed with a hamstring injury. He went 0-for-2 with a strikeout.
Thomas injured the hamstring while running out a double-play ball in the first inning and was eventually removed after the third inning. McCarthy entered to play right field while Corbin Carroll moved to center. Thomas is expected to be evaluated Monday and may not be available for the Diamondbacks' series opener with the Yankees later that day. McCarthy is the most likely replacement if Thomas isn't available.