LEADING OFF: Cubs face Bumgarner; Greinke looks for rebound
Bumgarner has two complete games and a 1.42 ERA during his four-start winning streak, with 41 strikeouts and two walks in that span.
Milone was pressed into relief duty due to a depleted bullpen last Sunday and worked a perfect inning in the Twins' 4-3, 12-inning win at Baltimore.
Drew Smyly goes for the Rays in his third start since returning from a torn labrum in his left shoulder.
Nationals rookie Joe Ross (4-5) takes the mound in the series finale against San Diego one night after older brother Tyson Ross started for the Padres in Washington.
Giants center fielder Angel Pagan is scheduled to come off the disabled list before the series finale against the Cubs.