ANTHONY Mundine finished American rival Bronco McKart with a brutal barrage in the seventh round to claim victory in his first fight in the United States.

Mundine had dominated the fight with his superior hand speed, but stepped up in the seventh after landing a big right.

McKart rose to his feet but was dropped again, and had to hang on.

Mundine then unleashed a series of vicious uppercuts that left McKart clutching at his opponent and then on the canvas as his corner threw in the towel.

The 37-year-old Australian said afterwards that he is determined to fight boxing’s best, Floyd Mayweather Jr, after a couple more fights in the States.

Mayweather’s father, Floyd Mayweather Sr, was ringside at the Palms Resort in Las Vegas, and told Mundine in the ring: “Floyd’s the man to meet if you want to get beat”.

Mundine said: “I’m boxing’s best kept secret.

“I want [Saul] Alvarez, I want [Miguel] Cotto, I am on their level, easy.”

Mayweather Jr, who is currently in jail serving time for domestic violence, plans to have a fight in November when he returns, but is unlikely to consider Mundine unless he defeats a big name such as Cotto or Alvarez first.

Mundine improved his record to 44-4 with 26KO while inflicting McKart’s 10th defeat in 66th fight.

Mundine claimed the IBF North American middleweight title but said he would campaign at light middleweight from here on, given Mayweather, Cotto and Alvarez rule in that division.