Henry Cejudo would only consider coming out of MMA retirement to face UFC featherweight champion Alexander Volkanovski.
After defeating Dominick Cruz at UFC 249 in May, Cejudo made the shock announcement that he was bringing an end to his time in the Octagon and vacating the bantamweight title.
The 33-year-old former flyweight champion, who also won wrestling gold at the 2008 Olympic Games, says he could only be enticed back by the prospect of becoming the first UFC fighter to win belts in three different divisions.
However, he has also been in talks over a switch to boxing and a fight with Ryan Garcia, who at 21 years old possesses a 20-0 record with 17 knockouts.
"I've done everything in MMA. I'm satisfied with my career," Cejudo told TMZ Sports.
"There would only be one fight that would really bring me back, that would really wake me up in the morning – other than Ryan Garcia – it would be Alexander Volkanovski.
"I want a third title because I want to be different. There's been a lot of champ-champs, but it's just to cement it and go into the history books as the greatest mixed martial artist of all time."
Cejudo is close friends with former heavyweight boxing champion Mike Tyson, who is training for a potential return to the ring in exhibition fights.
A third meeting with fellow retiree Evander Holyfield has been touted and Cejudo predicts Tyson's comeback – regardless of who it is against – will be a landmark event.
"Mike Tyson is in a beautiful, beautiful place. Uncle Mike is about as ready as you could ever imagined," he said.
"He's ripped, he's serious. The only thing I could say is that when Mike Tyson does make his comeback, it's going to be the biggest thing in sports."
On whether he would be up for fighting Tyson, Cejudo replied: "I love Uncle Mike, I could never lay a finger on Uncle Mike.
"He's been a huge mentor. He's a guy that guides a lot of people and I feel like I'm under his wing."