Anthony Mundine has set his sights on a lucrative fight with WBA champion Floyd Mayweather after beating Shane Mosley for the WBA International super welterweight title on Wednesday.

The 38-year-old, from New South Wales in Australia, recorded a bizarre TKO victory over his American opponent, who was forced to retire midway through the fight after suffering back spasms.

But now Mundine wants a bout with the world's best pound-for-pound fighter, Mayweather, although he accepts that he may need to take on and beat someone else beforehand.

"I just want the best, I don't care," Mundine told AAP. "Obviously I want Floyd [Mayweather, he's] the best of the best but that's not going to happen [next].”

Instead, Mundine has targeted two fighters who have suffered defeats to the unbeaten Mayweather: Miguel Cotto and Saul Alvarez.

"You've got to do your time and beat the right fighters There's Cotto out there, there's Alvarez,” Mundine added. "They are the type of calibre of fighters I want to fight."

However, the Australian pugilist has ruled out a rematch with Mosley, who will watch Wednesday's fight back before deciding whether or not to call time on his career.

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