Trailing 5-2 with six outs left, the New York Yankees got set to face their nemesis, Boston's Pedro Martinez, who, despite a high pitch count, took the mound for his eighth inning of work.
Derek Jeter would hit a one-out double and be driven in by Bernie Williams' single, cutting the lead to two and prompting Red Sox manager Grady Little to pay Pedro a visit, presumably to remove him from the game.
But Little inexplicably left Martinez in, and Pedro allowed back-to-back doubles to Hideki Matsui and Jorge Posada, with Posada clearing the bases and tying the game at five.
Pedro would be replaced with Alan Embree and then Mike Timlin, and the pair would go on to throw 1.2 innings of scoreless relief for Boston.
Tim Wakefield would take over in the 10th inning and need only 14 pitches to dispatch of Matsui, Posada and Jason Giambi.
Mariano Rivera would throw three scoreless innings himself for the Yankees, sending the Yankees into the bottom of the 11th inning with Aaron Boone, who had pinch-run for Ruben Sierra in the bottom of the eighth inning, stepping to the plate for the first time in the series-deciding game.
As Boone was warming up in the on-deck circle, he thought about taking a pitch but then talked himself out of it (h/t MLB.com).
It's either the best—or worst—decision he ever made, depending on which side of the rivalry you fall on.