Mayweather Jr has just one request from the UFC fighter at the moment and that is to stop blowing smoke up the fans bums.
"If Conor McGregor really wants to fight to happen, stop blowing smoke up everybody's a**; sign the paper," Mayweather said to ESPN. "You said you're a boss, just sign the paper, and let's make it happen."
McGregor hasn’t competed since winning the UFC Lightweight Title from Eddie Alvarez at UFC 205. At this point, Mayweather Jr is unsure of the potential bout with McGregor will ever be taking place.
"The Conor McGregor fight, I don't know if it's going to happen," said Mayweather. "If it do, it do, and if it don't, it don't."
A boxing match for the MMA fighter would be the first time he has ventured out of his sports, but Mayweather Jr has ventured out of the boxing ring before.
That venture outside of the boxing world took place many years ago to face professional wrestler Big Show at WWE Wrestlemania 24. Mayweather Jr retired from the boxing world after defeating Manny Pacquiao by unanimous decision nearly two years ago.