Career
He is currently signed with Bellator and has also competed for the UFC.
Originally from Curitiba, Brazil, Queiroz began training when he was 13 years old. Early career
Queiroz made his professional mixed martial arts debut in his native Brazil in November 2003. Over the next seven years, he amassed a record of 5 wins and 1 loss before signing with the UFC. Ultimate Fighting Championship
Queiroz made his debut against Rob Broughton at UFC 120, losing via rear naked choke.
Queiroz later tested positive for the steroid Stanozolol and was released by the UFC. Bellator Fighting Championships/Bellator Mobile Marketing Association
After sitting out from the sport for well over a year, Queiroz signed with Bellator in March 2012.
He made his debut as a participant in the Bellator Season 7 Heavyweight Tournament against Mark Holata at Bellator 75. He faced Alexander Volkov on November 9, 2012 at Bellator 80 in the semifinal.
He lost via TKO in the second round. Queiroz was scheduled to enter the Bellator Summer Series Heavyweight Tournament but pulled out due to an injury.
He was replaced by Ryan Martinez.
In the fall of 2013, Queiroz entered the four-man Season 9 Heavyweight tournament. He was scheduled to face Cheick Kongo in the finals but would withdraw due to a knee injury and was replaced by Peter Graham. After nearly two years away from the sport, Queiroz returned to the Bellator cage to face Ewerton Teixeira at Bellator 143 on September 25, 2015.
