Green Bay Packers outside linebacker Andy Mulumba confirmed Wednesday on Twitter that he sustained a torn anterior cruciate ligament in Sunday's 31-24 win over the New York Jets.
Packers coach Mike McCarthy after Wednesday's practice that Mulumba would miss the rest of the season. McCarthy suggested Monday that Mulumba's knee injury was "significant."
"Unfortunately, My ACL injury was confirmed this morning, and it's just one of those bumps on the road! Nothing that I can't overcome!" Mulumba tweeted.
Mulumba, 24, was one of three undrafted free agents to make the Packers' initial 53-man roster last season. He played almost 300 defensive snaps last season due to mounting injuries at the position, recording 30 tackles and a sack in 14 games (three starts).
The injury occurred on a punt play in the fourth quarter against the Jets.
Mulumba had one tackle in two games this season.