PITTSBURGH (AP) _ Bruce Aven hit his first two home runs of the season, including a tiebreaking shot in the seventh inning Saturday night that sent the Pittsburgh Pirates over the Milwaukee Brewers 11-8.

The Pirates fell behind 5-0 in the first inning but came back to end a streak of seven consecutive home losses to the Brewers.

Wil Cordero and Brian Giles also homered for Pittsburgh. Charlie Hayes and Henry Blanco homered for the Brewers.

Juan Acevedo (0-1) had retired seven consecutive batters when Aven hit his first pitch of the seventh into the seats for a 9-8 lead.

The Pirates added a run in the seventh when Mike Benjamin hit his second double and scored on Warren Morris' single. Kevin Young had a sacrifice fly in the eighth.

Scott Sauerbeck (2-0) got the win with 1 2-3 innings of scoreless relief. Mike Williams pitched the ninth for his sixth save.

Pirates starter Brian O'Connor came up from Double-A Altoona to make his major league debut in place of the injured Francisco Cordova. The Brewers had four runs before O'Connor retired a batter.

Ron Belliard led off with a double and scored on Mark Loretta's single. After Jeromy Burnitz walked, Hayes hit a three-run homer. The fifth run scored when Marquis Grissom singled and Blanco hit an RBI double.

O'Connor retired the side in order in the second, but left after giving up two singles and a walk to open the third. Jose Silva pitched out that inning, the first of his four scoreless innings.

Pittsburgh got a run in the first off Horacio Estrada when Benjamin doubled and scored on Giles' single. Aven hit a two-run homer in the second.

Milwaukee took a 6-3 lead in the third on hits by Burnitz and Grissom. Cordero homered in the bottom half.

The Pirates went ahead 8-6 with four runs in the fourth against reliever Jim Bruske. Giles hit a three-run homer, his 10th, and Cordero and Luis Sojo hit doubles.

Blanco led off the sixth with a home run off Mike Garcia and Burnitz's sacrifice fly scored the tying run after two walks and an groundout.

Notes: Neither starter had much control. Estrada threw 69 pitches _ 33 strikes and 36 balls. O'Connor's 52 pitches were divided evenly between balls and strikes. ... Aven had one other two-homer game: June 13, 1999, while playing for Florida against the New York Yankees. ... Cordero's home run took several minutes. His ball struck near the top of the wall in right-center and was originally ruled in play by second base umpire Gary Cederstrom and Cordero stopped at second. After a lengthy conference, third base umpire Charlie Williams overruled the call and Cordero was allowed to finish his path around the bases. Television replays suggested the original call was the correct one. ... The Pirates' four homers were a season high.