 Warren collected his first career sack when he sacked Miami Dolphins quarterback Jay Fiedler for a 1-yard loss in the first quarter of the Patriots' 19-13 overtime victory on October 13.Warren earned his first Super Bowl ring playing as a reserve in the Patriots' victory over the Carolina Panthers in Super Bowl XXXVIII.In the 2004 season, Warren became a starter at defensive end in the Patriots' 3-4 system and played in all 16 games, and recorded 48 tackles and 3.5 sacks.