Former two-weight world boxing champion Paulie Malignaggi says Conor McGregor v Floyd Mayweather could be a bigger event than Mayweather v Manny Pacquiao in May 2015.

Malignaggi was responding to news that UFC lightweight champion McGregor claims he has signed his half of a deal to fight former five-weight boxing world champion Mayweather.

While Malignaggi respects McGregor for "stepping up to the challenge", he believes the Irishman has no chance of beating Mayweather in a boxing match.

This clip was first broadcast on 5 live Sport, Thursday 18 May 2017.