"Mentality... I think a fighter has to be born with it. We have many brothers, many fighters in the gym, but not everyone becomes a champion. Five or seven people will succeed, but hundreds and hundreds of fighters come to the gym. Because it requires a special character.
Usman, Umar and Islam love to compete. They love to fight, they love to win. It's very hard to "teach your heart". Very difficult. You have to have that mentality from the beginning," MMA Junkie quoted Khabib as saying.