Oakland's offense is starting to click, and that's especially the case with two outs.

The A's scored 12 two-out runs in a three-game sweep of the Orioles, and on Sunday, the big blow of the game came with two outs and two strikes, when Josh Willingham launched a 3-2 pitch from Zach Britton into the seats down the left-field line for his team-high ninth home run.

That three-run shot in the fifth put Oakland back up 5-4 after the Orioles had taken the lead in the top of the inning with a four-run rally against A's starter Guillermo Moscoso.

"They had all the momentum," Willingham said. "For us to come back and score some runs kind of equalized the momentum. ... You start to play more consistently and win when you get some big hits with two outs."