Floyd Mayweather believes a superfight between him and MMA star Conor McGregor will happen sooner rather than later.
Mayweather told ESPN that the two fighters are on the verge of an agreement.
"We're getting very, very close," the 39-year-old Mayweather said.
While Mayweather is optimistic, he said that nothing is guaranteed until contracts are signed. No timetable was given for the prospective boxing match.
"Real people are having real discussions," Nevada State Athletic Commission chairman Anthony Marnell said.
"I'm also telling you my opinion as the NSAC chairman that a lot of things need to get done in order to see something like this come together because there are so many parties that want to get their hands on the pot.
"Maybe it will get figured out, but it's going to be hard when everyone is declaring they want $100m."
McGregor cancelled an event in Dublin scheduled for Friday and is believed to be filming an anti-bullying video in Las Vegas, in an attempt to smooth relations with the Nevada Sport Commission that fined him $75,000 and slapped him with 50 hours community service for throwing water bottles at the pre-UFC 202 press conference.
Mayweather, a former five-division boxing champion who retired undefeated at 49-0 in 2015, said in January that he believed the fight could happen after McGregor said he was determined to fight him.
The 28-year-old McGregor, the reigning UFC Lightweight Champion, obtained his California boxing license in December.
UFC president Dana White offered McGregor and Mayweather a sum of $25 million each in January for a fight. Mayweather scoffed at the offer, saying White was "an (expletive) comedian."
McGregor last competed at UFC 205 last November when he beat Eddie Alvarez for the lightweight title to become the first two-division champion in UFC history.
He also held the featherweight title after knocking out Jose Aldo at UFC 200 last July. McGregor was stripped of the featherweight belt in November to focus on the lightweight division.
McGregor was a promising amateur with Crumlin Boxing Club but has only ever competed professionally in mixed martial arts.
