WWE legend Brock Lesnar doesn't plan on returning to the UFC in the future as he insists 'I'm too old' for that kind of thing.

The former UFC heavyweight champion hasn't set foot inside the Octagon since defeating Mark Hunt in the co-main event of UFC 200 in July 2016, a unanimous decision victory which was chalked off after Lesnar tested positive for clomiphene.

South Dakota native Lesnar is currently back competing for the WWE where he has resumed his rightful place as the face of wrestling's premier organisation.

And during an interview with The New York Post, 'The Beast Incarnate' firmly ruled out a return to the UFC.

When asked if he is now officially done with MMA, Lesnar replied: “That door is closed.

“You know what, Dana White, the Fertitta brothers [Lorenzo and Frank] were exceptional to me.”

“I’m too old. That’s a young man’s sport, and that door is closed. I’m Brock Lesnar, the WWE Superstar.”

It comes after Lesnar explained the difference between working for UFC CEO Dana White and WWE CEO Vince McMahon.

LAS VEGAS, NV - JULY 9: Brock Lesnar in between rounds gets instructions from his coach against Mark Hunt (R) during the UFC 200 event at T-Mobile Arena on July 9, 2016 in Las Vegas, Nevada. (Photo by Rey Del Rio/Getty Images)

During an appearance on The Pat McAfee Show last month, the former American football player said: “Dana’s alright. I’ve got a lot of money from him. I probably should have got paid more, maybe.

“I really can’t compare the two guys. Honestly, my relationship with Vince is so different than it is with Dana over the years.

"Vince and I have had a love-hate relationship for the last 20 years, but it’s been good. We have a lot of water under the bridge. I have a lot of respect for both.

“But dealing with Dana, it’s just a totally different business approach. I met Vince when I was younger. I look at Vince more as a father figure actually.

“Because I’ve learned a lot of things from him, and I was able to carry those things over and handle business with Dana. Vince is a self-made person, so is Dana. Took the company and made it public.

“It’s a different game entering the octagon. I’m telling you, you’ve got to be half bats*** crazy. You do.

“I ordered an octagon so I didn’t have the first jitters of getting in that octagon. I’m like ‘Dana, I want an octagon’. Boom, ship it off to Brock, so I could fight in it, practice in it.

"But then you’re in front of 20,000 people and they shut the door, and it’s like, OK, here we go.”