Some tough news for the Chicago Bears' defense. 

With injury blows hitting the team yesterday's signing of veteran Bruce Irvin makes more sense. 

General manager Ryan Pace announced that Danny Trevathan is done for the season and has been placed on injured reserve. 

Trevathan missed the first four games with a knee injury but was able to battle through and appeared in the last five games registering 19 tackles. 

Bruce Irvin returned to Seattle last year however tore his ACL in the second game of the season. 

More details to come.