aaron brooks
![](https://a.espncdn.com/media/motion/2015/0815/dm_150815_mlb_athletics_orioles/dm_150815_mlb_athletics_orioles.jpg?w=660&r=16%3A9)
A's call up switch-pitcher Pat Venditte, who gives up walk-off in loss to Orioles
Chris Davis hit two home runs, the second a tiebreaking shot with two outs in the bottom of the ninth inning off just-recalled Pat Venditte, to give the Orioles a 4-3 victory Saturday night.