Heavyweight boxer Tyson Fury has once again called out UFC champion Cain Velasquez “I have challenged him before and would consider taking him on in a one-fight deal. I would beat him and then return to boxing,” Fury told the U.K.’s Daily Star on Tuesday. “I’m definitely interested, but the money would have to be right.”Fury, who has previously referred to Velasquez as a “midget” and to MMA as “rubbish,” made headlines earlier this year by challenging the UFC king to a fight, either in a boxing ring or the UFC’s Octagon. UFC President Dana White recently responded to Fury’s public requests, inviting the boxer to follow in James Toney ’s footsteps.“You want to fight Cain? Come on over here,” White stated last month. “We’ll make a deal. You will get smashed.”Toney, of course, made a one-fight appearance in the UFC back in 2010, when he was taken down and submitted by Randy Couture at UFC 118. The former multi-division world champion has not competed in MMA since that ill-fated debut.Despite the result of Toney’s confrontation with Couture and White’s warning, Fury appears undeterred in his desire to face Velasquez.“I am 100-percent up for a fight with him,” said Fury. “I’ve challenged him to a fight three times, but he’s a little boy who doesn’t want to fight and has said no to the fight live on television.”Meanwhile, Velasquez has given little credence to Fury’s challenges thus far.“I’m not a boxer,” Velasquez told ESPN Chicago back in January. “I’m a mixed martial artist, and if he wants to fight, he can go into the UFC and work his way up like everybody else does. Nothing is given to you in this world. To me, it’s like, don't talk about it; go ahead and do it. That’s all I have to say about that. I didn’t know who he was until this. I think he’s using my name to gain publicity, which he has done; everybody is bringing it up.”Velasquez, 30, regained the UFC heavyweight title on Dec. 29, dominating Junior dos Santos for 25 minutes at UFC 155. Dos Santos had previously wrested the title from Velasquez in November 2011, when he knocked out the American Kickboxing Academy product in just 64 seconds. The loss stands as Velasquez’s only setback to date.Fury, meanwhile, has yet to taste defeat as a pro boxer, compiling 21 consecutive victories to his credit. The 6-foot-9 heavyweight made his North American debut in his most recent outing on April 20, knocking out Steve Cunningham in the seventh round at Madison Square Garden in New York City.