How to tell if your injured knee is too sore to play football

NFL players, coaches and medical staff often talk about how sore they are, and how they can tell when their knee is hurting.

But in recent years, more and more, people are becoming aware of the symptoms of the common injury that can come with football.

And the new data from the NFLPA shows that some players may be more susceptible to knee pain. 

Here are the latest updates from the latest injury news from around the NFL.