Warren missed all of the 2010 season after sustaining a hip injury during the preseason. Before that he was a starter for the Patriots since 2004. He has 20.5 sacks, including a season-high 7.5 in 2006.
Warren will join a revamped Broncos defensive line under first-year Denver coach John Fox. The team also acquired defensive tackle Brodrick Bunkley in a trade with the Philadelphia Eagles, and signed free agent defensive end Derrick Harvey, who previously played with the Jacksonville Jaguars.