John Foster (2-0) pitched a scoreless seventh to get the win.
The Mets (12-18) scored the first runs of the game in their half of the fourth after Tony Clark hit a solo home run -- his fifth of the year -- and after Ty Wigginton tripled, Rey Sanchez drove him home with a single into left field.
The Brewers (10-20) were able to come right back and cut the lead in half when second basemen Eric Young homered off Mets starter Jae Weong Seo. Two innings later Richie Sexson tied the game by grounding out to shortstop that knocked in Keith Ginter.
Jae Weong Seo pitched six innings and surrendered two hits, two runs, two walks, and fanned six. He did not factor in the decision and lowered his ERA to 3.15 on the season.
David Weathers (1-1) came on for the Mets in the bottom of the seventh and allowed the first two batters to reach base and after Eddie Perez sacrificed both runners over with a bunt, Royce Clayton was walked intentionally to load the bases.
Mike Stanton, after pitching two innings on Friday night, came on to face pinch hitter Brady Clark. He was able to push the go ahead run in with a sacrifice fly to center that scored John Vander Wal.
Roberto Alomar, with the Mets down a run, began the top of the eighth by walking off Milwaukee reliever Luis Vizcaino and was followed by a Roger Cedeno single. But Mike Piazza grounded into a double play and Cliff Floyd struck out to end the threat.
Milwaukee starter Ruben Quevedo went six innings and allowed two runs, two hits, three walks, and struck out three. Mike DeJean closed it out and picked up his fifth save of the season.
Mo Vaughn, inflammation in the knee, was placed on the 15-day disabled list and the Mets recalled catcher Jason Phillips from Triple-A Norfolk...... Timo Perez led the Mets with three hits by going 3-for-4 with an RBI on the night... Roger Cedeno extended his hitting streak to five games by going 2-for-4... LHP John Franco threw batting practice on Friday, is expected to do it again at Shea next Tuesday, and then possibly begin a rehabilitation assignment... The Mets came into the game with a 29-9 record against Milwaukee since they joined the NL in 1998... Al Leiter (3-1, 3.19) opposes Brewers' Matt Kinney (2-1, 2.48) on Sunday afternoon...