OAKLAND -- A.J. Puk's heart was practically pounding out of his jersey.
For two straight days, the A's 24-year-old rookie had been sitting anxiously in the bullpen, just waiting for his name to be called. That call finally came Wednesday night.
Puk made his highly-anticipated major league debut against the AL-leading New York Yankees, allowing a walk and a single in 1/3 of an inning, but keeping the Bronx Bombers off the scoreboard in a 6-4 A's victory.
"It was great to finally get the first one out of the way," Puk said after the game.