Oakland scored three times in the ninth inning, then Coco Crisp hit a go-ahead single in a three-run 10th as the Athletics feasted on Chicago's shaky bullpen for a startling 7-4 win over the White Sox.
Crisp entered the game in the ninth as a pinch-runner and was in a 3-for-22 slump before singling off Matt Thornton (0-2). The struggling Chicago closer had walked Conor Jackson and Josh Willingham to set up Crisp.
Daric Barton followed with a two-run single and Thornton was booed as he was walked off mound and was replaced by Tony Pena. Cliff Pennington's two-out, two-run, bases-loaded single in the ninth off Thornton made it 4-all. It was the third late-inning meltdown by Chicago's bullpen in less than a week, all resulting in tough losses.
With the White Sox leading 4-1 in the ninth, Chicago reliever Chris Sale gave up a leadoff double to Jackson, an RBI single to Willingham and a single to Hideki Matsui. Jesse Crain came on and walked pinch-hitter Barton to load the bases before fanning Kurt Suzuki.
Thornton then struck out pinch-hitter Ryan Sweeney for the second out before No. 9 hitter Pennington dropped his two-run single into center.
Thornton, who took over as Chicago's closer this spring, still does not have a save this season in four chances. Grant Balfour (1-1) pitched the ninth for the win and Brian Fuentes the 10th for his fifth save in as many chances. Oakland's rally denied Chicago starter John Danks a victory after he gave up a run and five hits in eight solid innings and left with a three-run lead.
The White Sox broke a 1-all tie in the sixth against Oakland starter Brett Anderson when Carlos Quentin was hit by a pitch, Alex Rios doubled and a sliding Quentin scored on Ramon Castro's grounder to third that drew a high throw to the plate from Kevin Kouzmanoff.
Brent Morel dropped down a bunt to score Rios from third for a 3-1 lead. Juan Pierre's third single of the game chased Anderson (0-2), who was hurt by his own error in the fifth. Anderson gave up nine hits and three runs _ two of them earned _ in 5 2-3 innings. Chicago added a run in the eighth as Rios walked, stole second, moved up a sacrifice and scored on Kouzmanoff's throwing error. Matsui's second homer of the season put Oakland up 1-0 in the fourth. Chicago tied it in the fifth when Pierre reached as Anderson fumbled his comebacker for an error and Gordon Beckham doubled.