Aaron Miles ripped a hot shot back to the left-hander and he couldn't get out of the way quickly enough. The ball struck him on the left thumb.
Gorzelanny had already thrown 118 pitches in the game and was taken out. X-rays were negative.
Gorzelanny went 5 1/3 innings, giving up two runs on 10 hits. He left with the Pirates trailing, 2-0.
Daniel Berk is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.