"[Floyd] said 'You make $300 million a night, then you can give me a call' ... and I actually did the math and given the numbers of my last fight, I'm actually the highest paid UFC fighter and I'm a woman," Rousey said.
She added, "I think I actually make 2-3 times more than he does per second ... so when he learns to read and write, he can text me."
Mayweather responded to the jabs on Aug. 27, per TMZ:
"Big bank take little bank. Let's play and see how much money you got."
He added, "Last time I checked I was #1 on Forbes. She will never be at my status. Keep trying to get publicity."
The two have been feuding since Rousey won the ESPY for Best Fighter over Mayweather, prompting her to say, "I wonder how Floyd feels being beaten by a woman for once," per Gareth A Davies of the Telegraph.
That led to Mayweather's retort about the amount of money he can make in one night and eventually to Rousey's most recent rebuttal.
The two fighters are undoubtedly at the top of their respective games. Mayweather is undefeated in his professional career and coming off his hugely anticipated (though ultimately disappointing) victory over Manny Pacquiao, with Andre Berto on deck and the opportunity to tie Rocky Marciano's 49-0 record.
Rousey is 12-0 in her professional career and has absolutely dominated the UFC, most recently beating Bethe Correia by knockout in 34 seconds. Her last three fights have lasted a combined one minute and four seconds.