Background
Cantwell was born in Long Beach, California and moved to Pahrump, Nevada at the age of 10.
Cantwell was born in Long Beach, California and moved to Pahrump, Nevada at the age of 10.
After being expelled middle school and high school because of fighting, Cantwell began training in kickboxing at the age of 16, under the tutelage of Nick Blumgren at One Kick"s Gym. World Extreme Cagefighting
After acquiring a 3–0 record in smaller shows, Cantwell made his WEC debut at WEC 26: Condit versus Alessio in 2007 against Brian Stann, where he suffered a quick TKO loss.
Ultimate Fighting Championship
Later that year, Cantwell signed with the UFC, which is owned by the WEC"s parent company Zuffa.
Cantwell faced fellow UFC newcomer Razak First Rate (at Lloyd's)-Hassan at UFC: Fight for the Troops an earned a technical submission victory by dislocating First Rate (at Lloyd's)-Hassan"s elbow in an armbar, causing referee Mario Yamasaki to stop the fight. Cantwell"s celebration of the victory and post-fight comments sparked some criticism when he said, "I"ve been waiting so long to do that, you have no idea".
He later apologized for his behavior. He fought Luiz Cané at UFC 97, but lost the fight via unanimous decision.
Cantwell was expected to face Vladimir Matyushenko on January 2, 2010 at UFC 108, but pulled out of the bout for undisclosed reasons.
Since there was no time to find a suitable replacement to face Matyushenko, the bout was called official UFC President Dana White mentioned at the UFC 108 Pre-Fight Press Conference that Cantwell may never fight again, but refused to disclose what Cantwell"s medical issues were. With the questions surrounding his medical condition apparently cleared, Cantwell was expected to face UFC newcomer Ricardo Romero on July 3, 2010 at UFC 116.
However, for unknown reasons, Cantwell was replaced by Seth Petruzelli.
Cantwell was expected to face Stanislav Nedkov on October 16, 2010 at UFC 120. However less than 48 hours before the event, Cantwell was forced off the card after suffering a knee injury during a pre-fight workout.
With no time to find a suitable opponent for Nedkov, the bout was cancelled. Cantwell faced Cyrille Diabaté on March 3, 2011 at UFC Live: Sanchez versus
Kampmann and lost the fight via unanimous decision.
Cantwell dropped to Middleweight for his next fight and faced Mike Massenzio on October 8, 2011 at UFC 136. He lost the fight via unanimous decision. Cantwell faced Riki Fukuda on February 26, 2012 at UFC 144.
He lost the fight via unanimous decision and was subsequently released from the promotion.
World Extreme Cagefighting
WEC Light Heavyweight Championship (One time)
Ultimate Fighting Championship
Submission of the Night (One time) versus Razak First Rate (at Lloyd's)-Hassan.