Mayweather V Baldomir

Floyd Mayweather made an extraordinary retirement pledge after underlining his status as the best boxer in the sport by claiming the WBC welterweight title from Carlos Baldomir.

The 29-year-old 'Pretty Boy' insists he will fight just one more time - possibly against Oscar De La Hoya in a huge showdown early next year - before quitting boxing for good.

Mayweather said: "One more fight and that is it for me. I am not in this sport for the money, I am in it for the legacy, and I have done everything I wanted to do."

Mayweather, who won his first world title in the super-featherweight division, comprehensively outboxed the come-forward Baldomir to earn lopsided 120-108 (twice), 118-110 verdicts.

Argentinian Baldomir had emerged as one of the sport's unlikely success stories with successive victories over Arturo Gatti and Zab Judah.

But the 35-year-old had no answer to Mayweather's dazzling skills and admitted: "He was too fast and I could not catch him. When I did hit him my punches were not strong enough."

Mayweather, who said he now hoped to have tempted De La Hoya into what would be one of the biggest grossing fights in boxing history, struggled with a hand injury in the later stages of the fight.

Mayweather added: "I hurt my right hand in the middle of the fight and I have not felt this kind of pain before. But I can win in any circumstance and I will fight and beat anybody."

WBO Heavyweights: BRIGGS SNATCHES SERGEI'S CROWN

Shannon Briggs snatched the WBO heavyweight title in sensational fashion by knocking down champion Sergei Liakhovich with just one second left in their fight at Chase Field in Phoenix.

Going into the final round Briggs was told he needed a knockout to win the fight - the judges' cards later revealed he was trailing by three points on two cards and one on the other - and delivered right at the last.

The 34-year-old produced a left-right combination that sent Liakhovich to the canvas, then smashed the man from Scottsdale with a punishing - and decisive - right as he clambered back to his feet.

After his dramatic victory, Briggs said: "My corner kept telling me that I was losing the fight. They said that if I didn't turn it around, I would lose."

Liakhovich said: "I didn't fight my fight. I gave it away. I took too many shots in the 12th round."