No. 4 Kellen Winslow, TE
The tight end from the University of Miami was drafted by the Browns in 2004. He had a promising future with the team but injuries and run ins with the law ended it. He was seriously injured in his rookie season when the Browns coaches put him on the kickoff team where he, in turn was hurt. He came back and had a great season in 2007 when he caught 82 passes for 1106 yards and five touchdowns.
He proceeded to have issues with criminal activities off the football field. He is now in prison for acts of violence against women. It really has been a fall from grace for him.