No matter how great he is or was, every NFL player reaches that point. The point at which he is no longer the player he once was. Every year, former superstars find themselves past their prime and on their last legs.
Looking at many veterans' 2012 seasons, it is easy to identify candidates for this. Age is an obvious factor, but many older players are still playing at high levels. In addition to age, quality of play is the most important trait here.
This happens to varying degrees. Some of the players on this list are borderline unemployable. Others still have jobs and are capable of starting.
Who are some of the NFL's veterans whose careers are fading fast? Some of these names are obvious—others might surprise.