Conor McGregor shocked the world earlier today when he announced that he had decided to retire from the sport of mixed martial arts.

Many fans and fighters thought that McGregor’s tweet was a joke or a hoax.

However, Dana White just confirmed on ESPN’s SportsCenter that Conor McGregor is actually out of his scheduled UFC 200 rematch with Nate Diaz.

Here is a Tweet sent out by the UFC:

What do you make of the news? Sound off PENN Nation!