Pedro Rizzo

On 12 September 2015, Pedro returned to face Andrew Flores at Face to Face 12. He won via leg kicks, forcing Flores to quit in between rounds, and Rizzo announced his retirement shortly after the fight.

On 26 May 2013, Pedro faced Japanese heavyweight Satoshi Ishii at IGF: GENOME 26. He lost via unanimous decision.

On 21 June 2012, Rizzo faced former PRIDE Heavyweight Champion Fedor Emelianenko, at M-1 Global ring in St. Petersburg, Russia. Rizzo got caught by a right hand from Fedor that knocked him down; Fedor then proceeded with punches that left Rizzo motionless at 1:24 of the first round.

Rizzo returned to his winning ways on 9 March 2007, when he beat UFC veteran Justin Eilers by unanimous decision at the début show of Art of War Undisputed Arena Fighting Championship, which was held in Dallas, Texas.

He defeated Jeff Monson on 1 September 2007. This fight took place on the first pay-per-view event promoted by the Art of War Undisputed Arena Fighting Championship organization. Rizzo was defeated at Affliction: Banned by Josh Barnett, via knockout in round 2.

Rizzo is a former World Vale Tudo Championship (WVC) Heavyweight Champion and former contender for the UFC heavyweight belt. Rizzo was almost an unstoppable force in his early UFC run, which culminated in a highly controversial loss at the hands of Randy Couture. The UFC heavyweight title fight between these fighters took place in Atlantic city on the 4th of May 2001, and Rizzo dominated the pace of the fight and punished Couture with heavy leg kicks; which at the conclusion of the bout left Couture unable to exit the arena without assistance. After the judges read out the scores, even Couture's expression of disbelief assisted the public's reaction of a fight in which Rizzo was clearly robbed. Rizzo then had a chance to rematch Couture but was soundly beaten by Couture in this rematch, and after this fight Rizzo's performances were mixed. Rizzo never seemed to recover from the controversial loss to Couture in that first fight, and this is what is believed to have taken the wind out of Rizzo's sails; as his hunger and drive were the never the same as a consequence.

Pedro Augusto Rizzo (Portuguese pronunciation:  [ˈpedɾu ˈʁizu] ; born 3 May 1973) is a retired Brazilian mixed martial artist and kickboxer who competed for the UFC, PRIDE, M-1 Global, and Affliction. Although he never captured the UFC Heavyweight Championship, Rizzo competed for it three times and was regarded as a top contender for many years. Coming from a Muay Thai background, Rizzo competed in Vale Tudo before transitioning into mixed martial arts. Often regarded as one of the most dangerous strikers in heavyweight history, Rizzo holds notable victories over former UFC champions Mark Coleman, Dan Severn, Josh Barnett, Andrei Arlovski, Ricco Rodriguez and Ken Shamrock.