 Just days later , Yankee right fielder Gary Sheffield 's cap was knocked off by a Red Sox fan while trying to pick up a fair ball in right field at Fenway Park . In response , Sheffield pushed the fan . The conflict was quickly stopped by security guards . The fan was ejected from the game for interfering with play and eventually stripped of his season tickets . The season ended with both teams , already with guaranteed playoff berths , playing each other for the division crown on the last day of the season in a game that had the Yankees come out on top . Both teams wound up losing in the 2005 ALDS , the Yankees to the Los Angeles Angels of Anaheim and the Red Sox to the eventual World Series champion that year , the Chicago White Sox . 
