MILWAUKEE -- Josh Donaldson had a two-run single and Brandon Moss hit a three-run homer in the seventh inning, breaking open a tie game as the Oakland Athletics beat the Brewers 6-1 on Wednesday afternoon at Miller Park.
Donaldson went 3-for-4, scoring once and driving in two runs, to lead the A's to their fourth victory in the last five games. Oakland pulled within a game of division-leading Texas in the American League Central.
Donaldson's go-ahead hit ended the day for Milwaukee starter Yovani Gallardo (4-6), who had held Oakland to one run on three hits and a walk through his first six innings.
But Gallardo opened the seventh with a walk to John Jaso and loaded the bases with back-to-back singles by Yoenis Cespedes and Jed Lowrie. Jaso and Cespedes scored on Donaldson's single.
After left-hander Michael Gonzalez, who relieved Gallardo, got the inning's first out on Seth Smith's fly to left, Moss took Gonzalez's first offering to right center for his ninth home run of the season, giving the A's a 6-1 lead.
The big inning gave Bartolo Colon (7-2) a victory for the fourth consecutive start. Colon went seven innings and allowed one run, eight hits and two walks with four strikeouts.
Milwaukee took an early lead against Colon, who came into the game with a streak of 18 scoreless innings. Jean Segura started with his league-leading 77th base hit of the season and scored when Carlos Gomez tripled off the wall in center, snapping Colon's streak and putting the Brewers ahead 1-0.
Gallardo, who has struggled with velocity and command for much of the season, took advantage of the early run support. Despite a first-inning single by Jaso, he faced the minimum through four innings.
Lowrie opened the fifth with a single to left, moved to second on Donaldson's base hit and scored when Seth Smith hit into a double play, tying the score at 1.
Gallardo finished the inning and worked a clean sixth before he ran into trouble in the seventh. He was charged with five runs, six hits and a walk with four strikeouts, taking the loss for the fifth time in his last six starts.
NOTES: Brewers left fielder Ryan Braun was not in the lineup, but manager Ron Roenicke said the day off was planned and not related to reports that Braun could be suspended as a result of Major League Baseball's investigation into the Biogenesis clinic in Miami. ... Moss has just three hits in his last 31 at-bats, two of which have been home runs. ... Norichika went 2-for-4 and now has 1,501 career hits. He collected 1,284 of those during his eight-year career in Japan and has 217 since joining the Brewers last season ... Colon allowed two walks, giving him five for the season -- the fewest among American League starters. ... Milwaukee placed RHP Marco Estrada on the 15-day disabled list with a strained left hamstring and summoned RHP Tyler Thornburg from Triple-A Nashville.