Phillips, who was placed on injured reserve, is the second player to sustain a season-ending injury in three days. Starting wide receiver Jeremy Maclin tore his right ACL on Saturday.
Phillips, an offseason free-agent acquisition, played in 16 games for the Carolina Panthers last year, mostly on special teams. He spent his first two and a half seasons with the Baltimore Ravens and was entering his fifth year in the NFL.
Phillips has 17 tackles in 30 career games, including two starts for the Panthers last year.
Copyright 2013 by The Associated Press