Who in your opinion is the toughest fighter you've seen in the ring? IMHO I think the toughest was Randall Tex Cobb. I still remember Cobb fighting Larry Holmes for the championship. Cobb took a serious beating for fifteen rounds and still was standing when the final bell rang. I believe Cobb also fought for the super heavy weight kickboxing title as well. Wanna kill these ads? We can help!