Unbeaten world light-middleweight champion Floyd Mayweather has given his fans the chance to decide whether he should face Amir Khan or Marcos Maidana in his next fight.

The 36-year-old has been tipped to take on Khan after the British boxer signed a contract in December for a showdown that could potentially take place in Las Vegas this May.

However, Mayweather has asked his fans on Twitter to vote on whether he should face Khan or 30-year-old Argentine Maidana.

Mayweather wrote on the social networking website: "I'm going to let the fans vote. Tell me who I should fight next. Khan or Maidana?"

Khan won his most recent fight against Julio Diaz in April.