Every NFL player has something to prove every year. However, some people's jobs depend on it more than others.
No matter how safe a player seems, things change very quickly in the NFL. Very few players have a guaranteed roster spot, and thus, every season comes with an opportunity to win or lose a job.
Whether it's a rookie looking to surpass expectations, a veteran looking to prove his worth, or any player looking to prove he fits in a particular scheme, there are a number of reasons for players to continue looking over their shoulders.
Here's one man's opinion on the 12 players with the most to prove during OTAs.
All contract information via OverTheCap.com.