The Irishman has become arguably the biggest and most recognised athlete on the planet thanks to his efforts in the UFC, both inside and outside of the Octagon.
McGregor brutally stopped Eddie Alvarez last year at Madison Square Garden in New York City to become the UFC's first-ever simultaneous two-weight world champion.
Adding the lightweight strap to his former featherweight belt, McGregor had also ventured up to welterweight for two epic clashes with American rival Nate Diaz.
What Makes the ‘Money’?
Mayweather has been in the professional boxing game for over two decades and has amassed an incredible 49-0 unbeaten record, equalling the legendary Rocky Marciano in the process.
Having dismantled many top class fighters during the course of his illustrious career already, Mayweather looks more than likely to reach 50-0 with a comfortable success over his Dublin-born opponent.
The latter UFC superstar will be making his boxing debut, while Mayweather has been in the sport from when he was a child.
So does McGregor stand a chance of causing one of the greatest ever sporting upsets in Las Vegas? Simply put, no he does not.
In the Mayweather v McGregor betting info by freebets.uk, undefeated boxing legend Mayweather is installed as the red hot 1/6 favourite to triumph as expected.
Meanwhile, McGregor is a mammoth outsider but his odds have massively shortened recently to 4/1 due to a flood of hopeful bets placed on the deadly Dubliner to spring a surprise.
But there's a difference in simply changing sports over time and doing what McGregor is about to, which is to step up and challenge the best defensive boxer of the last 20 years.
McGregor hasn't undertaken any new trainers or personnel for this camp either, which also signals some danger for the fight.
There have been tough sparring partners called in to help but it's the Irishman's usual trusted coaches, including the main man in his corner John Kavanagh, that are preparing him for Mayweather.
Kavanagh has overseen McGregor's rampant rise to stardom and is confident he can upset the sporting world on August 26th, stating:
"We've always done best when everybody is just mocking the idea of an unknown Dublin guy saying he's going to take on the whole UFC roster and win the belt.
McGregor has already enjoyed huge success in his career in the Octagon but a step into the boxing ring against Mayweather is set to see him take a step too far.