Maidana offers to bet his bundle

Argentina's Marcos Maidana is so confident he will beat undefeated world welterweight champion Floyd Mayweather that he said on Monday he would risk his prize money for their Sept 13 rematch.

Maidana lost a close majority decision to Mayweather in their title unification bout in May but last week Mayweather announced he would face the South American slugger again in Las Vegas.

The fighters launched a five-city promotional tour in New York on Monday, with Maidana speaking to reporters at a second event in Washington.