Bronson Arroyo pitched six strong innings and homered in the sixth inning for the go-ahead run of the Cincinnati Reds' 3-2 victory over the Arizona Diamondbacks on Monday night.
Brandon Phillips added an RBI double for the Reds, who remained six games ahead of St. Louis in the NL Central and gave manager Dusty Baker his 400th win with the club.
Aroldis Chapman pitched the ninth for his 32nd save.
Justin Upton drove in both runs for the Diamondbacks, who have lost four straight and six of eight during their 10-game homestand.
Arroyo (11-7) allowed two runs and five hits for his fourth straight win.
With two outs in the sixth, Arroyo lofted a pitch from Tyler Skaggs toward the left-field bleachers where it struck a railing and ricocheted to the left and back onto the field.
Umpires, apparently believing the ball had hit the top of the fence initially called the ball in play and Arroyo stopped at second, but after a video review he was awarded his sixth career home run.