As reported by MMAFighting.com earlier today, Brock Lesnar has been forced out of his bout against Junior dos Santos at UFC 131.
Lesnar has suffered a recurrence of diverticulits. This same illness caused Lesnar to be out of action for over a year following his bout against Frank Mir at UFC 100.
While everyone in the MMA community wishes Lesner a speedy recovery, he is the latest to be added to the list of athletes who have suffered injuries and illnesses that have shortened or ended their careers.
Although there are way too many to list here, I present to you 15 athletes whose careers were unfortunately short changed due to circumstances beyond their control.