The Patriots have signed practice squad defensive lineman Santonio Thomas to the 53-man roster for tomorrow's Super Bowl against the Giants.

New England had an open spot on the active roster after placing special teamer Mel Mitchell on injured reserve Jan. 24.

Thomas played four regular-season games with New England this year before being released and re-signed to the practice squad on Oct. 29. He is a 6-foot-4, 305-pound Miami product the team signed as an undrafted free agent in 2005.