After picking up a win over UFC lightweight champion Conor McGregor in a boxing ring, Mayweather could be looking to tackle more UFC fighters in the octagon.

UFC President Dana White told ESPN that the UFC and Mayweather are negotiating a deal that would allow the five-division boxing world champion to fight in the UFC. White said such an event happening isn’t all that strange considering how unlikely the concept of McGregor fighting Mayweather in a boxing match was until it became a reality this past August.

“We’re talking to Floyd about doing a UFC deal. It’s real. He was talking about [boxing] Conor McGregor. Was that real? Have you heard Floyd talk about many things that aren’t real? He usually tips his hand when he’s in the media and then that s— ends up happening. We’re interested in doing something with Floyd. Everything is a realistic possibility. Mayweather vs. McGregor f—ing happened. Anything is possible,” White said.

Mayweather recently made headlines claiming that the company called him not too long ago about a potential run at MMA. During a recent live video chat on Fight Hype, Mayweather said he could make a billion dollars only fighting a few times in the UFC.

“You know they (the UFC) just called me not too long ago and asked me to come back, if I wanted to, I can come back to the UFC and go fight in the Octagon. I could go do a three to four fight deal in the Octagon and make a billion dollars,” Mayweather said.

Mayweather defeated McGregor via 10th-round TKO on August 26, picking up his 50th career win as a pro boxer. McGregor recently announced that his next fight would be in MMA and recently started training for his return fight in the UFC. The Mayweather vs. McGregor pay-per-view recently did about 4.3 million buys in North America, the second-highest buyrate for a boxing event in history behind Mayweather’s 2015 win over Manny Pacquiao.

This wouldn’t be the first time a boxing champion crosses over to the UFC for a fight. Back in 2010, former IBF super middleweight and cruiserweight champion James Toney fought Randy Couture at UFC 118, losing to the MMA legend via first-round submission.