Mayweather threatens to slap McGregor in profane tirade

Conor McGregor and Floyd Mayweather still don't like each other. And with McGregor obtaining a boxing license in California, Mayweather has not been one to shy away from calling out the UFC star.

In a profane Periscope video (NSFW language), Mayweather had some choice words for McGregor as rumors continue to emerge about a potential fight.

Mayweather said:

"I don't give a (expletive) what night it was, I ain't never taking no L. I'm (expletive) McGregor up too. Punk-(expletive) McGregor. I'm gonna slap McGregor. I'm gonna slap the (expletive) out of McGregor when I see him."

Though the fight will likely never happen, they may need to get something arranged just to bring an end to all the trash talking between the two.