Warren, 33, has spent the last two seasons with the Patriots after spending the first nine years of his career with the Browns, Broncos, and Raiders. In 2010, Warren was a starter at left defensive end for the Patriots, playing 16 games with 10 starts, and recording 28 tackles and 3.5 sacks. Last season, Warren played in more of a reserve role at defensive tackle, recording 12 tackles and a sack. However, Warren saw his role increase in the playoffs when the Patriots switched back to the 3-4, recording seven tackles in three games.
While he is far from an elite player at this point in his career, Warren is still a solid player and big body who can contribute in the Patriots defensive line rotation and get after the quarterback occasionally. If the Patriots are in the 4-3, Warren can be a contributor as a defensive tackle in sub-packages and in the base. When the team goes to the 3-4, he can play just about any position along the defensive line.
While Warren isn't a guarantee to make the final roster, his signing is a solid move for the Patriots, as he adds experience and depth to the Patriots defensive line. His spot on the roster could come down to a competition with fourth year defensive lineman Ron Brace.