VIDEO: Conor McGregor confronts former sparring partner Paulie Malignaggi

Conor McGregor is gearing up for the biggest fight of his career.

The UFC star is preparing to take on Floyd Mayweather in Las Vegas on Saturday night and is known for ‘Notorious’ trash talk.

But McGregor ended up confronting his former sparring partner Paulie Malignaggi as he made his way for a public press event.

The American boxer repeatedly asked McGregor: 'Did you bring your balls, Conor?’, to which McGregor replied: ‘You got your ass whooped. Get over it.’