Corey Hart belted a two-run homer in the bottom of the ninth as the Milwaukee Brewers completed a three-game sweep of the Pittsburgh Pirates with a walk-off 6-5 victory.

Fellow All-Star Ryan Braun and George Kottaras also homered for the Brewers, who improved to 8-3 against the Pirates this season.

Milwaukee battled back from a 3-0 hole to tie the game on a sacrifice fly by Rickie Weeks in the third inning and blasts by Braun and Kottaras in the fourth. Braun's shot was his 13th of the season and second in as many games, while Kottaras' was his seventh of the year.

Pedro Alvarez put the Pirates - who have lost six in a row - back in front with a leadoff homer in the sixth, but Braun led off the eighth with a single and scored four batters later on an RBI single by Carlos Gomez.

Pittsburgh showed its resiliency in the top of the ninth, moving ahead 5-4 on Andrew McCutchen's sacrifice fly.

But for the second time in the series Octavio Dotel (2-2) was unable to seal the win.

Pinch-hitter Jim Edmonds led off the bottom of the frame with a ground-rule double and after a flyout by Weeks, Hart launched his 21st homer of the season on a 1-0 slider, giving Milwaukee a thrilling win and Dotel his fifth blown save in 24 opportunities.

John Axford (5-1) notched the win despite yielding a run on two hits in the ninth.

Lastings Milledge homered and Ronny Cedeno collected three hits for Pittsburgh, which has lost 24 of its last 26 games away from home and been swept in seven of its last eight road series.