Espinoza said the fight came together quickly after McGregor and the UFC reached agreement last month on their end of the deal and Mayweather's team pushed for the fight in recent days.
Mayweather is a -1,100 favorite at the Westgate SuperBook in Las Vegas, with McGregor paying back +700.
The boxing format heavily favours the undefeated Mayweather (49-0, 26 KOs) who many consider to be the best pound-for-pound fighter in the world. But the reason Conor McGregor's as big as he is is he'll fight anybody, anywhere, anytime.
The fight, which will be McGregor's first professional fight inside a boxing ring, is widely expected to be the highest grossing bout of all time, with the Irishman set for the biggest payday of his career by far, with $100 million set to come his way. Mayweather and McGregor eventually went back and forth with each other in the media and on social media talking about a possible fight, but making a deal was another story.
Indian-American Among 12 New Astronauts Chosen By NASA
Both will train two years as Astronaut Candidates , then assigned technical duties before receiving their flight assignments. Three candidates hold degrees from the Massachusetts Institute of Technology, and three graduated from military academies.
Union in call for assurances on Moy Park
Unite Regional Officer Sean McKeever called for action by political leaders on the long-term future of Moy Park. JBS is selling off different parts of its huge global business, including shareholding stakes in Moy Park.