5 NY Giants with the most to prove once training camp arrives

4. RB Eric Gray

Now, saying a fifth-round pick running back has a lot to prove may sound a little crazy. However, Eric Gray had an incredibly disappointing rookie season, and if he can't prove he can be a consistent back, his time with the Giants is likely limited.

Even with Saquon Barkley and Matt Breida leaving, Gray looks like the RB3 for New York. While he could easily move his way up to backing up Devin Singletary, he must prove he is capable of this beforehand, and given his competition, there's a decent chance he can.

Currently, it seems like Tyrone Tracy Jr. is the best option to back up Singletary. Not only is he a far more dynamic back in the open field, but he offers more versatility as a runner and pass-catcher. Despite this, Gray is still a solid dual-threat back and may offer more value on the ground as a pure-runner.

Last season, Gray was thrown into a horrible situation that saw him returning punts instead of running the ball. Even when he was given carries out of the backfield, though, he was still pretty disappointing, running the ball 17 times for 48 yards and zero touchdowns. It's tough to judge who will win this backfield battle, but one thing is certain, Gray must prove he can be an NFL-caliber back sooner rather than later.