Pettitte got two quick outs to start the game but then gave up three straight hits, including an RBI single to Carlos Pena, then a walk and a two-run double by Corporan.
Then when Corporan connected for his first of the year four pitches later, a two-run shot that right fielder Brennan Boesch barely moved on, a fan in a nearly silent Yankee Stadium shouted "mercy rule, " eliciting laughter.