Floyd Mayweather has sensationally claimed he offered Conor McGregor £12 million for a boxing bout.
Mayweather, who retired in September 2015 after defeating Andre Berto, ended his career with an unbeaten 49-0 record.
Since Mayweather's retirement, McGregor has risen even further into superstardom, becoming the first ever double UFC champion.
Their rivalry has been well-documented, with the pair regularly exchanging insults at each other, with McGregor wanting a fight with the unbeaten boxer.
Mayweather has confirmed that there is an offer on the table, telling ESPN's First Take: "Conor McGregor keeps telling everybody he wants the fight. Let's make it happen.
"We tried to make the McGregor fight. My number was a guaranteed $100million (£83m). We offered him $15m (£12m).
"We're the A-side and I don't know how much he has made but I'm pretty sure he hasn't made $2m in an MMA bout.
"We can talk about splitting the PPV but we are the A-side. How can a guy talk about $20m or $30m if he’s not made eight or nine?
"Is the fight going to happen? We're working on it."
The Irishman has previously demanded a $100 million pay package to fight Mayweather, and is now in the middle of a break from MMA ahead of becoming a father.
McGregor has previously stated he's up for the fight, saying he would "break his face" in reference to 'Money' Mayweather.