SAN FRANCISCO -- Barry Bonds took most of the day off after hitting his 661st homer.
Milwaukee's Geoff Jenkins provided the lone longball Wednesday, helping the Brewers avoid a three-game sweep by beating the San Francisco Giants 3-0.
Wes Obermueller allowed three hits in 6 2-3 innings. He also contributed an RBI single and a sacrifice bunt for the Brewers, who stopped a three-game losing streak.
David Bennett and Dan Kolb completed the Brewers' first shutout since Aug. 31 at the Chicago Cubs. Kolb was perfect for his third save in three chances.
Obermueller (1-1) retired his first 11 hitters, then gave up back-to-back singles in the fourth before calmly getting nine straight outs.
San Francisco's lineup, missing several regulars, lacked oomph without its star slugger, who passed godfather Willie Mays for third place on the career homers list Tuesday.
Obermueller, pitching against the Giants for the first time, walked A.J. Pierzynski with two outs in the seventh then allowed a bloop single to Michael Tucker before giving way to Bennett.
Fans began chanting, "Barry! Barry!" and manager Felipe Alou obliged. No. 25 marched out of the dugout to a standing ovation.
He was intentionally walked to load the bases, bringing up pinch-hitter Edgardo Alfonzo, who flied out to center, ending the threat.
Bonds trails only Hank Aaron (755) and Babe Ruth (714) on the career list.
The names on the home-run list along the right-field wall will still include Mays. The sign reads: Aaron 755, Ruth 714 and Mays 660. Bonds is above them on the brick area just beneath the seats. Each name has a small number in the upper left corner, such as a 4 by Mays signifying where he ranks on the career list.
Brian Cooper (0-1) struggled early, giving up an RBI single to Gary Bennett in the second, then settled down to retire his final 14 batters. He allowed four runs and two hits in six innings.
It was his Giants' debut and marked his first big league start and appearance since April 12, 2002, for Toronto.
Notes: The Giants have an off day Thursday before their weekend series against the rival Los Angeles Dodgers. ... Ace RHP Jason Schmidt is to make his first start of the season Friday. Schmidt has been bothered by shoulder soreness, but manager Felipe Alou hopes he'll go five or six innings. "For everybody on the staff to the pitchers, we feel more relaxed with him - knowing he's going to be there every five days," Alou said. ... To make room for Cooper, who was brought up from the minors before the game, OF Tony Torcato was optioned to Triple-A Fresno. ... Obermueller was the loser in the Brewers' home opener, 13-7 to Houston.