Milwaukee, WI (Sports Network) - Prince Fielder launched a game-winning home run in the eighth and the Milwaukee Brewers survived a sloppy ninth, pulling out a 4-3 victory over the Arizona Diamondbacks in the opener of a three-game set.

Fielder finished with three hits and a heads-up stolen base, while scoring twice and Bill Hall had an RBI and scored for the Brewers.

Guillermo Mota (2-3) pitched a perfect eighth for the win, Milwaukee's fourth straight.

Chris Snyder doubled and homered, driving in two of the Diamondbacks three runs while Mark Reynolds had the other RBI and two singles for Arizona, which had a two-game win streak snapped. Arizona has now dropped six of its last eight overall.

Prince Fielder greeted Arizona's Doug Slaten (0-2) in the eighth with a leadoff homer to center, giving Milwaukee a 4-3 advantage heading to the ninth.

Salomon Torres came on to close out the game in the ninth but Reynolds dribbled a single and moved to second on Jason Kendall's errant throw to first. Justin Upton then reached on a Hall throwing error and Snyder moved both runners into scoring position with a sacrifice bunt for the first out. Torres bared down and got Augie Ojeda to pop out and retired Stephen Drew on strikes to end the game, notching his sixth save of the season.

Jeff Suppan fanned six over seven effective innings of three-run ball for Milwaukee. The right-hander allowed seven hits and two walks. Doug Davis was equally effective over six-plus innings, allowing three runs - one earned - on six hits and two walks for Arizona.

Arizona got on the board first in the second inning. Upton singled to center with two out and Snyder brought him around on a double to right.

Milwaukee answered in the home half. Fielder singled to center, leading off, moved to second on a wild pitch, and stole third when Davis paid the hefty first-bagger no mind. It proved costly as Fielder came in to score on a Hall sacrifice fly.

The D'Backs went back on top in the third. Drew worked a leadoff walk and Chris Young singled to right before Reynolds brought home Drew on a two-out infield single. Young was thrown out trying to score from second on the play, ending the frame.

Snyder drilled a home run to center leading off the seventh, extending the D'Backs lead to 3-1.

The Brewers came back in the home half to tie the game at three. Hall singled and J.J. Hardy worked a walk, starting off the frame to chase Davis from the game. Chad Qualls came on for Arizona and promptly pulled Orlando Hudson off first with an errant throw on a sacrifice bunt offering from Kendall, leaving runners safe at every base. Pinch-hitter Gabe Kapler then reached on a throwing error by third baseman Reynolds, with Hall and Hardy coming around to score. Qualls came back to get Rickie Weeks on strikes but re-loaded the bases by walking Mike Cameron. Ryan Braun then hit into an inning-ending double play.