They are two one-time athletic phenoms quickly approaching "what might have been" status.
After sitting out the 2015 season, former Alabama star Trent Richardson is reportedly on-the-verge of signing with the Baltimore Ravens. He's already washed out with the Cleveland Browns and Indianapolis Colts, and failed last summer in a trial with the Oakland Raiders.
D'haquille "Duke" Williams was kicked off the team at Auburn midway through last season, but has been invited to the NFL Combine to work out for and interview with professional teams. It remains to be seen if an NFL team will take a chance on Williams' talent, though being invited to Indianapolis is a good first step.