A.J. Griffin stymied Boston's potent offense by firing eight outstanding innings, enabling the Oakland Athletics to get back on track with a 3-0 win over the Red Sox in a matchup of AL division leaders from the O.co Coliseum.
Griffin (8-6) scattered six hits and walked just one before turning things over to Grant Balfour, with the fiery closer finishing off the shutout and stopping his club's two-game skid that included a 4-2 setback in Friday's opener of this three-game series.
The duo received offensive support from Derek Norris, who broke a scoreless tie with a solo homer in the fifth inning, as well as RBI singles from Yoenis Cespedes and Coco Crisp later on.
Jon Lester (8-6) was charged with all three Oakland runs over an otherwise- solid 6 1/3 innings, but was handed his sixth loss in eight decisions due to his teammates' inability to come through in the clutch.
The Red Sox stranded eight baserunners, four of which were left in scoring position, and went 0-for-5 in such situations to have a four-game win streak halted.