Boxing superstar Floyd Mayweather has made one thing clear, any potential fight against Khabib Nurmagomedov will not be in the Octagon. 

Shortly after his dramatic victory over Conor McGregor in October, Khabib called out Mayweather on Instagram.

He said: "Hey, let's go, Floyd. We have to fight now, 50-0 vs. 27-0. Two guys never lose. Let's go. Why not? Because in the jungle only one king. Only one king. Of course, I am the king because he cannot drop McGregor, but I drop him easily."

Despite a large amount of interest the two greats of their respective sports have generated, it remains highly unlikely that a fight between the two will ever materialise.

Mayweather, a boxer by trade, is unwilling to move into the Octagon.

He told TMZ: "They said it has to happen in the Octagon. And I said, 'Just tell me where Khabib has made nine figures before in the Octagon! If he hasn't made nine figures, he's not the A-side. So, I'm the A-side. It's my way, my rules. I'm Floyd 'Money' Mayweather!

Meanwhile, UFC President Dana White revealed to ESPN's Get Up! that the fight would only work on Khabib's behalf if it were to be held in a mixed martial arts arena.

"I don't think it's going to happen,"

"I don't think the fight would happen in the UFC, but they didn't say no."

On a more realistic level, the 41-year-old has kept the New Year's Eve exhibition fight against kickboxer Tenshin Nasukawa alive.

Mayweather insisted to TMZ that both parties were working on making the fight against the 20-year-old become a reality just a week after it was initially called off.

Mayweather also disclosed to TMZ that the fight would act more as a boxing exhibition than any blockbuster fight, previously stating on Instagram that there was never an agreement for a legitimate fight to be set up.

Despite who Mayweather may eventually come up against, it would be a fan's treat to see the legend return to the ring once again at the remarkable age of 41, still standing tall with a 50-0 record.