Athletes That Could Have Been Great

Who would you place on the list of greatest athletes of all time?  Of those whose careers were cut short for whatever reason,  how would they have impacted the world of sports had they been able to play a lengthy career?  After watching ESPN's 30 on 30 film on Bo Jackson, Adam Kessler of Columbus, Ohio, decided to put together a list of whom he considers to be in the league of  "who/what could have been".  To see who this speed trainer put on the list, click here:  Athletes That Could Have Been Great