Brock Lesnar, the ultimate fighting machine days out of the Octagon are numbered, after A UFC superfight between Lesnar and Jon Jones is in the making.

The fantasy fight comes after both the fighters showed interest to fight with each other.

"He's a massive dude," Jones said in his Facebook chat.

"It would be a massive draw, really big for the sport. It would be a great challenge. That's a big old boy. I doubt Brock Lesnar would take that fight, though. I definitely wouldn't try to wrestle with him the whole time. I'm not going to tell you what I would do."

Similar sentiments were expressed by Lesnar, the former UFC heavyweight champion.

"Would I fight Jon Jones? Anytime, anywhere," Lesnar said. "Right now he should be worried about D.C. on Saturday night," said Lesnar, quoted Associated Press.

Meanwhile, Jones is preparing for his rematch with Daniel Cormier in the main event of UFC 214 this weekend. Whereas, Lesnar fight with Jones would only be possible after his WWE contract ends next year.