Mayweather is now undefeated in 38 professional fights

The 30-year-old Mayweather immediately reiterated his intention to retire following his split decision win.

But Roger Mayweather said: "Floyd ain't quitting. Too much of this money will make a dead man walk.

"If I'm Oscar de la Hoya, I'm thinking, 'Why not fight Floyd again? Look at the money we made.'"

De la Hoya, 34, reportedly made �12.5m for the contest at the MGM Grand and Mayweather �5m, and that before pay-per-view revenues have been counted.

If Mayweather does keep his word, he will become only the third fighter in history, after Rocky Marciano and Mexican strawweight Ricardo Lopez, to retire as an undefeated and globally recognised world champion.

Mayweather's mind might be made up by the decision of De la Hoya, who has been told by his business partner and closest confidant Richard Schaefer to go home and give his future careful consideration.

Schaefer said: "Oscar is such a great champion, he gave the best pound-for-pound fighter in the world an amazing fight.

"What he needs to do is get some distance from this fight, and see what he wants to do.

"A great champ like Oscar deserves when he retires for it to be his decision, and his only. If he retires, he does so off a great performance. Oscar has nothing left to prove."

Mayweather's split-decision win may only have been questioned in the most vociferously pro-De la Hoya quarters, but it effectively gives a mandate for another meeting.