'I wonder how he feels to be beaten by a woman for once' - Ronda Rousey slams Floyd Mayweather
She rivals Conor McGregor as the biggest draw in the UFC and Ronda Rousey is just as rapier-tongued as the Dubliner.
Rousey has previously taken thinly veiled digs at his history of domestic abuse.
Mayweather has faced seven counts of domestic abuse against five women, and in 2012 he served three months in a Nevada detention centre after he was found to have repeatedly punched former partner Josie Harris.
Mayweather also once famously said of Rousey: "I have no idea who he is." And the UFC champion wasn't going to let that lie ether.
Rousey beat Mayweather to the 'Fighter of the Year' nod at the ESPY's last night and took a swipe at the undefeated American.
"I can't help but really say that I wonder how Floyd feels being beat by a woman for once," she said
"I'd like to see you pretend not to know who I am now."