MILWAUKEE -- Rookies Rickie Weeks, J.J. Hardy and Corey Hart are providing a positive glimpse of the future for the Milwaukee Brewers.
Weeks drove in the game-winning run in the sixth inning, Hardy had three hits and Hart manufactured a key run as the Brewers took advantage of four Florida errors in a 6-4 victory over the Marlins on Wednesday night.
"They've been playing great since they got here," Brewers manager Ned Yost said. "A huge part of what makes this so exciting is watching those kids get an opportunity and do well with it."
Weeks broke a 4-4 tie with a single off Marlins starter A.J. Burnett that scored Damian Miller from second. Hardy came around to score when the ball scooted past right fielder Jeff Conine.
Weeks said the rookies want to carry their weight.
"It takes a lot off the veterans' backs like Carlos Lee and Geoff Jenkins," he said. "We're trying to add and trying to keep up with them."
Hardy isn't analyzing his game after struggling early in the season.
"I don't know what I'm doing right now," he said after tying his career-high with three singles. "I'm just out there trying to see the ball and put good swings on it."
Marlins manager Jack McKeon is impressed with the Brewers' youngsters.
"I like their kids," he said. "They've got a lot of fire in them."
Burnett (12-7), who gave up two earned runs over six innings, was burned by three errors in the first inning, none costlier than his own.
His errant throw on a high chopper by Lee led to two runs after he was staked to a 1-0 lead on an RBI single by Carlos Delgado in the top of the inning.
Weeks led off the bottom half with a single, then second baseman Luis Castillo booted Lyle Overbay's grounder. Burnett misplayed Lee's high chopper by throwing wide of first base. Weeks scored easily, and Overbay came around from first to make it 2-1 when Conine was slow backing up the play.
Lee scored from third when shortstop Alex Gonzalez dropped Bill Hall's routine grounder to make it 3-1.
"We had a major breakdown on defense," McKeon said after the Marlins' second straight loss at Miller Park. "The Department of Defense wasn't in action tonight."
Delgado's three-run homer off Brewers starter Tomo Ohka in the third gave the Marlins a 4-3 lead. Ohka (9-7), who snapped an eight-game losing streak against Florida, allowed four runs and nine hits in six innings.
Derrick Turnbow worked the ninth for his 28th save.
The Brewers tied it at 4 in the fifth when Hart walked, stole his first base and scored on Lee's groundout to second.
Yost said the team -- which beat Josh Beckett on Tuesday night and Roger Clemens last week in Houston -- is showing the toughness needed to move back above .500 after improving to 63-64.
"I'm real encouraged with a lot of things I'm seeing out there right now," he said.
Brewers top draft pick 3B Ryan Braun is expected to miss the rest of the season with a strained elbow. GM Doug Melvin said it was a precaution. ... Burnett's bat slipped out of his hands on a swing and landed eight rows above the Marlins' dugout. No one in the crowd was seriously injured. ... Weeks' streak of reaching base six straight times ended in the second on a groundout.