Mayweather announced this on his Instagram.
The first fight between them took place in August 2017. Then Mayweather won the fight according to the rules of boxing.
On January 19, McGregor knocked out Donald Cerrone in 40 seconds in the first round of the UFC 246 tournament. This victory was his 22nd in the MMA with four defeats.
Earlier, the head of the UFC said that McGregor’s revenge with Khabib Nurmagomedov would definitely not take place in Moscow.