Mike Leake pitched into the eighth inning and singled home a run — a rare commodity for the Reds these days — leading Cincinnati to a 3-0 victory over the Diamondbacks on Tuesday night. Leake (8-9) gave up five hits in 7 2-3 innings, repeatedly pitching out of threats by getting ground balls. A Reds lineup already missing first baseman Joey Votto and second baseman Brandon Phillips — both on the disabled list — also was without right fielder Jay Bruce, who went on bereavement leave for his grandfather's death. Left-hander Wade Miley (6-7) starts the final game of the series before Arizona returns home to face Pittsburgh. [...] baseman Aaron Hill was back in the starting lineup after being limited to one pinch-hitting appearance in the last two games because of a bruised right hand.