5. Leslie O’Neal
It almost feels unfair to put O’Neal on this list because injuries curtailed him in his second and third seasons. While he didn’t regress in terms of playing ability, he couldn’t contribute as he would have wished on the playing field. That was a shame because he was superb in his rookie year.

His knee injury sidelined him for almost two years. O’Neal achieved 12 sacks in his first year but only made four when he returned to action. However, he did recover and went on to play in the Pro Bowl six times in his career. That showed real strength of character.