Green Bay Packers coach Mike McCarthy announced Saturday night that linebacker Desmond Bishop will have hamstring surgery and his season is "in jeopardy."
Bishop suffered the injury during Thursday's preseason opener at San Diego. He injured both his knee and hamstring while making a tackle in the first quarter.
McCarthy classified the knee injury as a "sprain," but the hamstring needs surgery. A decision on Bishop's status will be made after the procedure.
"It's unfortunate," McCarthy said on the team's site. "Everybody knows the type of player Desmond is for us. He's clearly one of the spiritual-type individuals, (with) the energy he brings to the workplace, and just the way he plays.
"He puts so much into it, and after last year with his calf injuries, I know he was really looking forward to having a big year."
Bishop led the team in tackles last season with 115 and was second in sacks with five.
The California product has 292 tackles, nine sacks and one interception over 69 career games with the Packers.
Second-year pro D.J. Smith will step into Bishop's starting spot. Smith had 43 tackles and one interception in 16 games last year.