BBC Sport - UFC champion Conor McGregor vows to 'take over boxing'
McGregor: 'I'm going to shock boxing world'
- From the section Boxing
UFC champion Conor McGregor says he is going to "shock the boxing world" by beating five-weight boxing world champion Floyd Mayweather.
Speculation has intensified the pair are to fight in Las Vegas in June, although it has not been officially announced.
Irishman McGregor, 28, said: "No-one in this boxing game knows what's coming.
"When I go in there I am going to shock the whole damn world."