Could it happen? Will it happen? It's a fight all boxers and UFC fans would pay big money to watch but can this really take place?
Floyd Mayweather Jr Vs Conor McGregor
Is this just a ''much-hyped mega-fight'' to boost MrGregor's career?
Rumour has it, a deal had been struck. However, Mayweather says he is "happily retired and enjoying life", and that NO fight will happen anytime soon.
Or is this just more media false news?
UFC fighter McGregor responded with an Instagram post mocking Mayweather featuring him sitting on a throne, the undefeated American was quick to hit back again.
Mayweather wrote on Twitter: "Listen, Conor McGregor, if you really want to get this fight done… take care of your business with the UFC and then have your people get in touch with my people."
The 39-year-old, who retired in 2015 with a record of 49 undefeated victories. He spoke of his confidence that the fight would happen, while McGregor – the first UFC fighter in history to hold belts in two weight divisions at the same time - is also optimistic.
The bout to said be worth $1billion.