You may recall that earlier this week we posted on Floyd Mayweather's racism rant on the state of boxing and how race plays a role in how certain fighters are portrayed. Sure enough, his points about boxing transitioned into thoughts about MMA, and he suggested Conor McGregor's praise, at least relative to the criticisms he's received, was a racially-based double standard. (Original interview via FightHype)

"I don't really know the McGregor guy; never seen him fight. I heard his name actually from one of the runners that works for our company; a little kid named Ken Hopkins, he's a runner and takes care of a lot of the daily business. Whatever we need, he takes care of. He's a cool little kid, I like him, and he does MMA. He told me about the guy McGregor. They say he talk a lot of trash and people praise him for it, but when I did it, they say I'm cocky and arrogant. So biased! Like I said before, all I'm saying is this, I ain't racist at all, but I'm telling you racism still exists."

Well it didn't take long for the UFC's reigning featherweight champion to get word of this and respond accordingly on Facebook. Not only did the racial remarks clearly strike his nerve, but he offered Floyd the chance to fight him, and he even worked out the purse split.

Floyd Mayweather, don't ever bring race into my success again. I am an Irishman. My people have been oppressed our entire existence. And still very much are. I understand the feeling of prejudice. It is a feeling that is deep in my blood.

In my family's long history of warfare there was a time where just having the name 'McGregor' was punishable by death.

Do not ever put me in a bracket like this again. If you want we can organise a fight no problem. I will give you a fair 80/20 split purse in my favour seen as your last fight bombed at every area of revenue.

At 27 years of age I now hold the key to this game.

The game answers to me now.

For the record, his "last fight bombed at every area of revenue" refers to Mayweather's retirement fight vs. Andre Berto last September, which reportedly sold about 400,000 buys, the worst PPV for a Mayweather fight since 2006. It was basically like Mayweather vs. Pacquiao in the sense that it also sold 400,000 buys, as well as an additional 4 million.

This isn't the first time McGregor has gone after Mayweather. Last year, he said he would "kill" Mayweather in under 30 seconds in an MMA fight and "wrap around him like a boa constrictor and strangle him."

While Mayweather says he's retired at a perfect 49-0 (26 KOs) in boxing, McGregor is reportedly set to headline UFC 197 against Rafael dos Anjos on March 5th, as he seeks to become the simultaneous featherweight and lightweight champion.