Aqib Talib's knee fine?

New England Patriots top corner Aqib Talib proved his worth as a shutdown cover guy this season; his absence (knee) for more than half of his team's loss in AFC Championship game last Sunday showed how much the secondary is dependent on his presence. Denver Broncos quarterback Peyton Manning may still have had a stellar day with Talib in the game but one could conclude Demaryius Thomas doesn't light the team up quite the same way with Talib covering him. Now the question is: how bad is the knee injury and what does it mean for his prospects as a free agent?