PHOENIX -- D-backs manager Kirk Gibson asked for and won a challenge in the eighth inning of Saturday night's game against the Reds.
While a trainer looked at Pollock's hand, the umpires reviewed the call. The play was overturned and ruled a hit-by-pitch.
Pollock left the game and was replaced at first by Nick Evans.
The D-backs have challenged nine calls this season and have had three overturned.
Adam Lichtenstein is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.