Jake Arrieta pitched six innings of four-hit ball to win his major league debut, and the Baltimore Orioles ended their 10-game losing streak against the New York Yankees with a 4-3 victory last night.

Arrieta gave up three runs and outpitched veteran A.J. Burnett (6-4), who came in 11-2 lifetime against Baltimore and 5-0 at Camden Yards.

Yankees third baseman Alex Rodriguez left the game after the first inning with a recurrence of groin tightness.

Arrieta, 24, provided a glimmer of hope for a struggling franchise that owns the worst record in the majors (17-43). The righthander wasn't particularly overpowering, but he mixed his 106 pitches well enough to keep the defending world champions in check.

Arrieta (1-0) struck out six, walked four (two intentionally) and limited New York to 1-for-5 batting with runners in scoring position.

He started and finished his outing with two impressive innings. Arrieta worked a perfect first, and after a double and two intentional walks loaded the bases with two outs in the sixth, he struck out Marcus Thames.

David Hernandez worked the ninth for his first big-league save and Baltimore's first since May 21.

In other games:

* At Oakland, Trevor Cahill (5-2) allowed one run in a career-high eight innings to win his fourth straight start and the Athletics beat nemesis Ervin Santana (6-4) and the Los Angeles Angels, 6-1.

* At Chicago, John Danks (5-5) pitched seven innings of one-hit ball, Omar Vizquel homered and had a suicide-squeeze bunt, and the White Sox beat the Detroit Tigers, 3-0.

* At St. Petersburg, Fla., Brett Cecil (7-2) won his fifth consecutive start, Alex Gonzalez homered and drove in two runs and the Toronto Blue Jays beat the Tampa Bay Rays, 3-2.

* At Arlington, Texas, Josh Hamilton homered for the fourth time in seven games, Michael Young went 3-for-4 with a homer, and the Texas Rangers won their third straight over the Seattle Mariners, 12-3.

* At Cleveland, Russell Branyan hit a two-out, two-run single in the ninth inning, rallying the Indians to a crazy 8-7 win over the Boston Red Sox.

* At Minneapolis, Wilson Betemit hit solo home runs from both sides of the plate and Joakim Soria picked up his 14th save in a hairy ninth inning and the Kansas City Royals beat the Minnesota Twins, 9-8.


* Los Angeles Angels first baseman Kendry Morales will miss the rest of the season after undergoing surgery on his broken left leg.