Boston ? Mariano Rivera sat in the dugout and threw his hands in the air. A brief fit of frustration, but an uncommon display for a dominant closer who rarely fails and shows emotion even rarer still.

“When you don’t do your job with the lead that we had, how can you be happy?” Rivera said Saturday after Shea Hillenbrand’s eighth-inning homer gave the Red Sox a 7-6 victory over New York and sent the Yankees to their fourth consecutive loss.

New York reliever Mariano rivera steps off the mound as Boston's Shea Hillenbrand, left, rounds the bases after hitting a home run. The Red Sox won, 7-6, Saturday at Boston.

Rivera was one of the most automatic saves in baseball while helping New York win three straight championships from 1998-2000. But in the ninth inning of Game 7 of last year’s World Series, he gave up a run-scoring double to Tony Womack and a blooped single to Luis Gonzalez to blow a 2-1 lead and end the Yanks’ reign.

This year, Rivera had four saves in four scoreless appearances until Saturday.

David Wells left with a 6-3 lead after allowing Johnny Damon’s double with one out in the eighth. Ramiro Mendoza hit Nomar Garciaparra with a pitch and gave up Manny Ramirez’s single to make it 6-4.

Rivera came on and got Tony Clark on a run-scoring groundout. But Hillenbrand followed with his fourth homer of the season.

Rolando Arrojo (1-0) earned the victory after allowing a run on four hits and two walks in 223 innings. Ugueth Urbina pitched the ninth for his fifth save, giving up a hit to Jorge Posada with two outs.

Pinch-runner Alfonso Soriano was thrown out trying to steal second to end the game the first runner caught stealing by the Red Sox in 14 tries this season.

White Sox 4, Orioles 3

Chicago Paul Konerko hit a tiebreaking single in the eighth inning after a double error on Baltimore second baseman Melvin Mora as Chicago rallied. Konerko’s single off Willis Roberts (0-1) snapped an 0-for-16 slump.

Kenny Lofton singled with one out in the eighth and reached second on a wild pitch. Ray Durham hit a grounder to Mora, who fumbled the ball for the first error and threw low past first baseman David Segui. Frank Thomas singled, and one out later Konerko singled.

Blue Jays 5, Devil Rays 4

St. Petersburg, Fla. Carlos Delgado hit a two-run homer and doubled as Toronto won its fourth in a row. The Blue Jays have scored 39 runs during their winning streak. Delgado, who also homered Friday night at Tropicana Field, has four hits and five walks in the first two games of the series.

Tampa Bay stranded 13 runners and lost for the sixth time in seven games.

Winner Luke Prokopec (1-1) earned his first AL victory, giving up one run and seven hits over five innings.

Twins 7, Tigers 3

Minneapolis The Detroit Tigers’ lost their 10th straight game their worst start in 82 years as Torii Hunter went 3-for-3 with three RBIs to lead Minnesota. The Tigers are the only winless team in the majors and are off to their worst start since going 0-13 in 1920.

Doug Mientkiewicz had three hits and Eric Milton (2-1) bounced back from the worst start of his career to give the Twins their second straight win after getting swept in a four-game series in Cleveland.

Tigers starter Jeff Weaver (1-2) retired 12 of 13 batters after allowing two runs in the first inning.

Mariners 9, Rangers 4

Arlington, Texas Mike Cameron homered twice and Seattle won its sixth straight road game. Cameron’s two-run homer started a four-run outburst in the sixth that put Seattle ahead to stay. He added a solo shot, his fourth of the season, in the ninth for his sixth career two-homer game.

Paul Abbott (1-0), despite a shaky five innings, improved to 6-0 in 13 career appearances against the Rangers. He gave up four runs and seven hits with five strikeouts and two walks.

Athletics 7, Angels 2

Anaheim, Calif. Eric Chavez and Scott Hatteberg each hit two-run homers and Oakland claimed its ninth straight victory over the Angels. Eric Hiljus (1-1) allowed two runs and four hits in 523 innings, pitching for the first time in eight days after missing a turn in the rotation because of a day off in the schedule. Frank Menechino had a three-run double for the A’s, who improved to 8-4 to match their win total from last April.