Mayweather, McGregor arrive in style in Las Vegas

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Cool, calm and confident, Floyd Mayweather Jr. and Conor McGregor arrived in style in Las Vegas.

The time for trash talking is over, with the superstars ready for a fight billed as one of the biggest in history.

Out of retirement at 40 years of age, Mayweather seemingly has more to lose - his undefeated record after 49 fights included.

A win in the boxing ring for UFC champion McGregor would go down as one of the biggest shocks in history.

The moment has almost arrived.