Photo: Instagram/Mike Tyson James "Buster" Douglas shocked the world in 1990 when he stopped Mike Tyson to become the Undisputed Heavyweight Champion. As a 37/1 underdog in Tokyo, Douglas survived a knockdown in the eighth round and delivered a TKO victory in the tenth, handing "Iron" Mike his first loss. However, Douglas lost the titles to Evander Holyfield in his next fight. Today, Oleksandr Usyk is the reigning champion in the heavyweight division. The Ukrainian fighter recently defeated the previously undefeated Tyson Fury by points decision, adding the WBC belt to his collection, which already includes the IBF, WBA, and WBO belts won from Anthony Joshua . Despite the dominance of Usyk, Fury, and Joshua, Douglas believes they wouldn't have fared well in his era. In an interview with Gambling Zone, he said, “I speak to my trainer about today’s heavyweights, and he has a low opinion of them. He says they [Fury and Joshua] wouldn’t have been in the top 30 i...