LOS ANGELES (AFP) - The votes are in, and fight fans say Britain's Amir Khan should be American Floyd Mayweather's next opponent, according to an online poll conducted on Mayweather's website.

World Boxing Association welterweight champion Marcos Maidana had held a lead in the voting on Mayweather's mayweatherpromotions.com online poll, but when the voting ended on Sunday Khan had swept past him with 20,105 votes to 15,474 for Maidana.

Although unbeaten Mayweather had invited fans to choose between Khan and Maidana as his foe for a May 3 Las Vegas bout, it wasn't immediately clear if a Mayweather-Khan clash was indeed now a given.

At 45-0 with 26 knockouts, Mayweather is approaching the 46-0 career mark of retired Welsh star Joe Calzaghe and the iconic 49-0 mark of heavyweight legend Rocky Marciano.

Mayweather beat Saul "Canelo" Alvarez last September in his most recent bout for the WBA and World Boxing Council light middleweight titles. He has a contract for four more fights in the next 2 1/2 years.

Khan, a former WBC and International Boxing Federation light-welterweight world champion, opted out of a December fight against Devon Alexander, fueling speculation that he would be Mayweather's next opponent.

He last fought in April of 2013 when he beat Julio Diaz.