MLB: Baltimore 9, Boston 6 (17 innings)

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BOSTON, May 6 (UPI) -- Adam Jones' three-run homer in the 17th inning Sunday handed the Baltimore Orioles a marathon 9-6 victory over Boston.

The Red Sox had brought in outfielder Darnell McDonald (0-1) to pitch in the top of the 17th and J.J. Hardy collected his fifth hit of the game, a two-out double.

Nick Markakis walked and Jones followed by smacking a pitch into the seats above Fenway Park's "Green Monster" left field wall, breaking a 6-6 tie.

Orioles first baseman Chris Davis (1-0) earned the victory by tossing two shutout frames, striking out Adrian Gonzalez and inducing McDonald to ground into a game-ending double play in the bottom of the 17th.

Hardy launched two solo homers for Baltimore, which completed a three-game sweep of the Red Sox and grabbed sole possession of first place in the American League East with a 19-9 record.

Will Middlebrooks cracked his first major-league homer -- a grand slam -- and Ryan Sweeney went 4-for-8 with an RBI for Boston, which dropped a fifth straight game.