The guys each chose 4 people from any sports like football, baseball, basketball, boxing, hockey, and MMA. And allowed the viewers and the fans to vote.
The Criteria of the Tough Guys:
-Can dish out pain
-Can tolerate pain
-Can instill fear and intimidation
Whichever person got the most votes moves on in the brackets. Voting opens on June 27 and ends on July 5. Chuck Liddel of UFC versus Mirko CroCop of Pride, who is the toughtest man on the planet.