Orioles 9, Blue Jays 1

-- Bruce Chen gave the Baltimore Orioles' pitching staff a much-needed rest.

A night after the Orioles used a major league-record 10 pitchers in a nine-inning game, Chen worked the first complete game of his career to win for the first time in over two years, leading Baltimore over the Toronto Blue Jays, 9-1, Monday night at SkyDome.

"The bullpen needed a rest. He probably would have pitched 12 innings," Orioles Manager Lee Mazzilli said.

Pitching for his sixth team in three seasons, Chen (1-0) allowed just five hits and a run in his first win since April 21, 2002, for Montreal against the New York Mets. He struck out five and didn't walk a batter.

"I just wanted to win. It's my first win in such a long time. To give this team a complete game, especially after we used 10 pitchers yesterday, it was huge for us," Chen said.

Rafael Palmeiro homered during a five-run first inning.

Toronto starter Justin Miller (3-4), pitching a day after his grandfather died, got two outs in the first before allowing seven straight batters to reach.

Miguel Tejada hit an RBI single, Palmeiro hit a two-run homer and Jay Gibbons and Larry Bigbie hit consecutive run-scoring singles.

Toronto reliever Sean Douglass replaced Miller to start the second.

"I'd rather not talk about that at all," Miller said of his grandfather's death.

Vernon Wells drove in the lone run for the last-place Blue Jays, who lost their fourth straight to fall a season-worst 26 games below .500.

"Chen kept us off-balance all night," Blue Jays interim manager John Gibbons said.

Chen allowed just three hits over five scoreless innings before Russ Adams led off the sixth with a single. Two batters later, Wells tripled.

The Orioles added four runs in the eighth off Kevin Frederick on Jay Gibbons's RBI single, Brian Roberts's two-run triple and David Newhan's sacrifice fly.

Notes: The two teams have Tuesday night off because the Blue Jays didn't want to play on the same night as the final of the World Cup of Hockey. . . . The Orioles placed first baseman David Segui on the 15-day disabled Monday with recurring inflammation of his left knee. . . . Plate umpire Matt Hollowell ejected Baltimore's Luis Lopez in the ninth for arguing balls and strikes

Rafael Palmeiro gets approval from Miguel Tejada after hitting two-run homer during a five-run first inning. Bruce Chen, pitching for his sixth team in three years, threw a five-hitter.