Conor McGregor would 'take out' Floyd Mayweather if the two were to meet, according to Eddie Alvarez' coach.
The Irishman made history by defeating Eddie Alvarez to become the first dual-weight UFC champion at Madison Square Garden.
Notorious knocked out the American in the second round after an impressive four-punch combo, and in doing so, became both the featherweight and lightweight champion.
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The match was followed by the boxing phenomenon calling comparisons between the two "disrespectful."
The fight sparked fresh calls for the two to meet in a cross-code duel that would break all pay-per-view records if it were to go ahead.
Mayweather maintains he is retired and doesn't seem keen on the idea of a fight with McGregor.
In response to Mayweather's comments about the UFC star, McGregor retaliated by urging the American to say the stuff to his face.
This came before he also demanded massive money to fight the boxer under boxing conditions.
However, Mark Henry, Alvarez' trainer, was hugely impressed with the Irishman.
He stated: "You cannot teach somebody how to swing like that - It takes hips, it takes a certain shoulder, it takes a flick of the wrist, there are so many tiny mechanics.
"What it takes to make an eyeball work is what it takes to make the perfect swing. Like Babe Ruth. I just compare Conor - his swing - to Babe Ruth. I always watch tape of it but to be that close and watch it was a whole other thing.
"It comes along once in a lifetime or once every hundred years or what not. Before this fight, I would highly doubt him fighting Mayweather, but I think this dude can take out Mayweather. I'm not even joking."
High praise indeed when you consider that Mayweather went 49 bouts unbeaten, including an underwhelming dream fight with Manny Pacquiao.
Who do YOU think would win between Floyd Mayweather and Conor McGregor? Have YOUR say below!