TORONTO - J.P. Arencibia's two-out single in the bottom of the ninth drove in the winning run as the Toronto Blue Jays rallied to edge the Baltimore Orioles 5-4 on Saturday.

Toronto tied the game earlier in the inning on a wild pitch.

Baltimore took a 4-3 lead on Vladimir Guerrero's double in the eighth but closer Kevin Gregg, a former Blue Jay, couldn't hold the lead in the ninth.

Gregg (0-3) gave up a two-out walk to Kelly Johnson and single to Jose Molina. Chris Woodward ran for Molina and former Orioles pitcher Adam Loewen of Surrey, B.C. batted for Dewayne Wise and was hit by a pitch.

Arencibia pinch-hit for Mike McCoy and a wild pitch brought Johnson in with the tying run before Arencibia won it for the Jays (73-73).

Toronto starter Henderson Alvarez didn't figure in the decision after allowing nine hits and three runs over seven innings. The 21-year-old right-hander allowed one walk and fanned four before Jesse Litsch (6-3) took over in the eighth in a 3-3 tie.

Robert Andino led off the eighth against Litsch with a double and scored on a one-out double by Guerrero to give the Orioles (58-86) a 4-3 lead.

Orioles starter Rick VandenHurk allowed three runs and three hits in 2 1-3 innings, surrendering homers to Jose Bautista -- his major league-leading 41st of the season -- and Brett Lawrie of Langley, B.C. He was replaced by Zach Phillips.

Toronto shortstop Yunel Escobar left in the second after being hit on the left elbow with a pitch from VandenHurk. X-rays were negative and he's listed as day to day.

McCoy ran for Escobar and took over at shortstop.

Consecutive first-inning singles by Nick Markakis, Guerrero and Chris Davis put Baltimore ahead 1-0.

A leadoff walk to Escobar and Bautista's homer in the bottom of the inning gave Toronto a 2-1 lead.

Kyle Hudson bunted for a single and took on second on Alvarez's throwing error to lead off the second. Shortstop Pedro Florimon, playing his first major-league game, also bunted but was called out on a close play that brought manager Buck Showalter out to argue.

Hudson took third on the sacrifice and scored on Matt Angle's single.

Lawrie countered in the bottom of the second with his ninth homer since making his major-league debut in Baltimore on Aug. 5.

The Orioles tied it again in the third on Guerrero's single and Davis's double. Davis was thrown out at home by centre-fielder Wise on a single by Josh Bell.

NOTES: Attendance at Rogers Centre was 17,742.. ....Toronto DH Edwin Encarnacion didn't play due to a left shoulder strain picked up when he struck out in the seventh inning of Friday's 2-0 loss to Baltimore . . . Orioles centre-fielder Adam Jones did not start Saturday because his left ankle was swollen after taking a foul a ball Friday night . . . Dustin McGowan (0-0, 6.75 earned-run average) will make his first start for the Blue Jays since July 8, 2008 when he faces Tommy Hunter (3-3, 5.28 ERA) on Sunday.