New York ? For Mike Mussina, it was important to finish what he started.

Mussina saved a struggling New York bullpen with a four-hitter Saturday, pitching the Yankees to a 5-0 victory over the Oakland Athletics.

The win ended a four-game losing streak that had dropped the seven-time defending AL East champions into a last-place tie with the Tampa Bay Devil Rays, nine games behind first-place Baltimore.

Mussina (3-2) dominated the Athletics with his 22nd career shutout and first since Aug. 17, 2003 — which was also the last complete-game victory by a Yankees pitcher. He struck out three, walked two and allowed only two runners to reach second base in his 131-pitch outing.

“Finishing was obviously important to him,” Yankees manager Joe Torre said. “He had command of the strike zone. He threw all his pitches, and he was able to throw strikes.”

With 11 wins after 30 games, the Yankees had their poorest record at that point since 1966, when they also were 11-19. The last time the team was eight games under .500 was June 1995, the year before Torre became manager and led the Yankees to nine straight playoff appearances, including six American League pennants and four World Series championships.

Had the Yankees lost, they would have had their fewest wins after 31 games since 1913, when they were 9-22.

Tigers 2, Angels 1

Anaheim, Calif. — Troy Percival saved his first game against his former team for Jeremy Bonderman, who pitched four-hit ball over eight innings to lead Detroit over Los Angeles. Percival is the Angels’ career leader in saves with 316.

Rangers 6, Indians 1

Arlington, Texas — Alfonso Soriano had his second straight two-homer game as Texas beat Cleveland. Soriano’s home run leading off the second inning was his third in three at-bats, after a pair of two-run homers Friday.

Twins 8, Devil Rays 1

St. Petersburg, Fla. — Lew Ford’s two-run double capped a four-run fifth inning, and Justin Morneau hit a three-run homer, leading Minnesota past Tampa Bay.

White Sox 10, Blue Jays 7

Toronto — Paul Konerko homered twice and drove in five runs, and Chicago won its seventh straight. Tadahito Iguchi, Juan Uribe and Aaron Rowand also homered to help the White Sox improve their record to 23-7.