Washington Redskins linebacker Trent Murphy tore multiple ligaments in his left knee and will miss the season, multiple sources told ESPN.
Murphy tore the ACL and MCL in his left knee in Thursday's preseason opener vs. Baltimore. Murphy already was going to miss the first four games of the season after being suspended for violating the NFL's policy on performance enhancing drugs.
Murphy, a free agent after the season, was coming off a career-best nine sacks and was playing well in the preseason opener before the injury.