Now that the Green Bay Packers know the severity of tight end Colt Lyerla's knee injury, they will have a difficult decision to make on his future.

The highly publicized undrafted rookie has tears of both his medical collateral ligament and posterior collateral ligament, according to sources familiar with the injury.

Neither injury will require surgery, but he won't be back before the end of the preseason.

"I don't think I'll really find anything out until the cut day," Lyerla said this week. "But I know they can't cut me without some kind of injury settlement. If I'm out long enough, then it might be a big enough settlement where it might make more sense for them to just keep me if they're going to spend all that money anyway."

The Packers took a chance on Lyerla, who last played football in October 2013 before leaving the University of Oregon in midseason. He then ran into legal problems that ruined his chances of getting drafted.