Arizona Diamondbacks right-hander Zac Gallen made a successful return to the big-league, shutting down the Oakland Athletics after missing a month due to injury. He pitched six shutout innings, striking out 7 batters. His fastball was impressive at 95.2 mph, above his seasonal average.

The Diamondbacks will benefit from Gallen's return as they look to improve their rotation ERA. The team remains without injured starters Merrill Kelly and Eduardo Rodriguez, and are chasing a wild-card spot in the National League.