Chargers to place Cooper on IR, sign Hayes

The San Diego Chargers say they will place inside linebacker

Stephen Cooper on season-ending injured reserve on Wednesday with a

biceps injury.

Cooper was hurt in an exhibition game on Aug. 21. Coach Norv

Turner originally said Cooper would have surgery, but he ended up

playing in the first five games.

To take his roster spot, the Chargers signed inside linebacker

Gerald Hayes to a one-year contract. Hayes spent his first eight

seasons in Arizona.

The Chargers (4-1) have their bye this weekend.