It was supposed to be a pitcher's duel, Andy Pettitte vs. Mark Prior, but it turned into a slugfest instead. Jason Giambi, Raul Mondesi, and Robin Ventura (remember him?) all homered for the Yankees in the game, and Alfonso Soriano added a double. He was still a second baseman at the time--and showed why he would eventually be moved to the outfield when he also committed a costly error.
But despite the strong Yankees lineup, the Cubs came out victorious (8-7). They knocked Pettitte out of the game before the second inning was over (one of the shortest starts of his career). Moises Alou and Ramon Martinez both went yard against him.
The game also featured a hitting milestone. In the bottom of the seventh, with the Cubs up 6-3, Sammy Sosa stepped into the box against Yankees pitcher Juan Acevedo. Sosa ripped a single into left field, scoring Alex Gonzalez with the seventh run. It was the 2000th hit of his career, and it came while he was appealing his 8-game suspension for using a corked bat (in another inter-league game against the Tampa Devil Rays only five days earlier).
Sosa finished his career with 2408 hits.
