The NFL draft is around the corner, and every prospect from the top overall selection to Mr. Irrelevant has hopes and dreams of soon becoming an NFL superstar. A few will; most won't.
Those who don't make it big or make it at all in the NFL usually fail to do so because they lack the talent to become the next Joe Montana or Reggie White. But a few had every bit the chops to some day be bound for Canton and the Pro Football Hall of Fame, yet don't; either injuries, discipline problems, drugs or other tangential issues derail their careers.
I've selected the 10 saddest such cases with one major caveat.
Tragedy, drugs, arrests or injuries have ended many tremendous careers. Bo Jackson, Sean Taylor and Jerome Brown are three great examples. Each of those men may have been remembered as among the greatest ever to play their position had they been able to carry out a full career.
But at least they had some stardom. All three were Pro-Bowlers at one point, so it's inaccurate to say they belong on a list of "players that never were."
Keep that in mind while you read, these 10 men never reached even the precipice of greatness, like Jackson, Taylor, Brown and others did.