Floyd Mayweather Jr. Conor McGregor

In a bout that completely defied the pre-fight predictions of an easy Mayweather victory, the American showed his class as the rounds progressed to earn the bragging rights at the T-Mobile Arena.

Many had predicted that UFC star McGregor would be out of his depth against one of boxing's all-time pound-for-pound kings on his professional debut in the squared circle.

But the Irishman looked accustomed in the ring early in the contest and clearly had Mayweather confused with his unorthodox, wily style and there were signs that the mother of all upsets was on the cards.

Mayweather will put his 49-0 record on the line in Las Vegas this weekend after opting to come out of retirement to face McGregor in a blockbuster fight that has caught the world's attention.

The American has long been favourite to come out of the bout with a victory given his experience and boxing know-how, but McGregor's unpredictability has seen many backing an upset.

Mayweather has come out of retirement to put his unblemished 49-0 record on the line against UFC star McGregor, the pair going toe-to-toe in Las Vegas this weekend.

The fight has split opinion throughout the boxing world but Eubank - who has been training alongside the American in preparation for his own fight with Avni Yildirim in October - is very much in favour of the spectacle taking place.

And the IBO super-middleweight champion believes this fight will be the biggest of Mayweather's career, eclipsing his battle with Manny Pacquiao.