Floyd Mayweather has been invited to open discussions over fighting Conor McGregor by UFC president Dana White.
'Money' officially retired from the sport of boxing back in September but rumours continue the American will end his period of inactivity by taking on Ireland's controversial mixed martial artist McGregor.
Mayweather, who boasts a flawless 49-0 record as a boxer, previously stated clashing with McGregor was 'possible', while McGregor posted a mock-up promotional photo via his social media.
White told The Dan Patrick Show of the situation: "[McGregor] is under contract with the UFC. Listen, if Floyd wants to fight Conor, call me Floyd."
McGregor previously said: "I'm open to discussions; come at me. But I hold the key, and it's me who holds the key to the fight game.
"I am open-minded. I am open to discussion. I love competition. I love fighting. It would be nice to make that fight if the fans were interested and wanted to see it."
Should McGregor step in against Mayweather, legendary boxing coach Freddie Roach has been tipped to coach the Crumlin man, and Roach told boxingscene.com: "They did ask me if I'll train him. I said 'Sure, bring him down'.
"I'd like to see [him], meet the guy and see what he has. He seems like a nice guy."
McGregor, who has operated primarily as a featherweight (145lbs) in the UFC, recently stepped up to welterweight (170lbs) only to suffer a submission defeat to Nate Diaz.