Biografía

Knocked out Vernon 'Tiger' White at UFC 49: Unfinished Business. He cracked his orbital bone with a straight-right hand.

At UFC 52, he fought Randy Couture for the Light-Heavyweight championship. Couture had beaten Liddell at UFC 43 and this was the rematch after the two men had appeared as coaches on the first season of the UFC reality TV series The Ultimate Fighter. Liddell became the first and only man to ever knock Randy Couture out, successfully winning the Light-Heavyweight championship in just two minutes of the first round. The rubber match occurred the next year at UFC 57 where Liddell knocked out Randy Couture again, this time in the second round.

Knocked out Tito Ortiz at UFC 47: It's On. The two were supposed to fight at UFC 43, but Tito refused to fight Chuck, so Randy Couture stepped in and beat Chuck for the Interim Light-Heavyweight championship. After defeating Tito in the next UFC for the undisputed title, former contenders Chuck and Tito squared off against each other, Chuck winning by knockout in the second round. They eventually fought again at UFC 66, and Chuck knocked him out again, this time in the third round.

Liddell dominated Jose "Pelé" Landi-Jons in Pele's home country of Brazil at International Vale Tudo Championship 6. He scored a very convincing Unanimous Decision as he controlled the fight in every aspect. Pele is seen trying to jump out the ring as well on several occasions.

Engaged to Heidi Liddell [November 12, 2010].