(Reuters) - The Milwaukee Brewers flexed their home field advantage to beat the Arizona Diamondbacks 9-4 on Sunday for a commanding 2-0 lead in their best-of-five divisional playoff series.

Milwaukee, Major League Baseball's best home team in the regular season, fed off a frenzied crowd in the sixth inning where they broke a 4-4 tie by scoring five runs to bust the game open.

National League most valuable player candidate Ryan Braun went 3-for-4 for the second straight game, including a two-run shot in the first inning and three RBIs.

The Diamondbacks erased a 4-1 deficit with a homer by Chris Young and a two-run shot by Justin Upton, but things went awry in the sixth and they will now try to stave off elimination on Tuesday when the series shifts to Arizona.

(Writing by Jahmal Corner in Los Angeles; Editing by Frank Pingue)