Packers lose linebacker Mulumba to ACL

GREEN BAY, Wis. – The "significant injury" that coach Mike McCarthy referred to on Monday when discussing Green Bay Packers backup linebacker Andy Mulumba turned out to be a torn ACL.

The second-year pro injured his knee Sunday against the New York Jets while playing on the punt coverage team.

Mulumba tweeted the news on Wednesday morning.

While Mulumba had not played at all on defense this season, he was a key member the Packers' special-teams units.

Last season, Mulumba made the team as an undrafted rookie from Eastern Michigan and because of injuries at the outside linebacker spot, he played 355 snaps (or 31.8 percent of the defensive plays in 2013). He recorded one sack and 34 tackles in 14 games (including three starts).

The Packers will eventually place Mulumba on injured reserve, but they have not added anyone to take his place on the roster. They don't necessarily need to add a linebacker, given that they kept 11 on their roster.