The world's of MMA and pro-wrestling have occasionally crossed paths, with UFC and WWE seeing stars switch between the fight promotion and entertainment company.
And Daniel Cormier could be the next former UFC champion to join WWE, with the retired fighter open to a commentary role - although some believe he could be enticed to jump into the ring as part of a storyline for himself.
'We've been talking,' Cormier told Sports Illustrated. 'We’ve spoken to some of the people over there in very, very early conversations. WWE is a company I’ve watched and loved my entire life.'
Many stars have prospered after switching from elite fighting to the entertainment business. Brock Lesnar and Ronda Rousey are two to have made a successful crossover.
Sportsmail takes a look at some of the other stars who have ventured from UFC to WWE and vice versa.
Daniel Cormier could move to WWE to take up a commentary role but may also get in the ring
Lesnar is the most successful crossover between the two organisations.
After earning recognition as a heavyweight amateur wrestler for Bismarck State College and the University of Minnesotta, Lesnar signed with WWE and debuted in March 2002.
By August, he had already defeated The Rock to become the undisputed champion and the youngest in WWE history at the age of 25.
After building his name in the constructed entertainment world, Lesnar decided to pursue a career in the NFL with Minnesotta Vikings but failed to make the cut and instead found his way into MMA.
Brock Lesnar had arguably one of the most successful crossover careers between the two
His debut resulted in a defeat to Frank Mir but he soon became UFC heavyweight champion after beating Heath Herring and Randy Couture. Lesnar lost his final two fights Cain Velasquez and Alistair Overeem before returning to WWE.
But in 2016, WWE granted their star a 'one-off opportunity' to return to the UFC. Lesnar beat Mark Hunt but the decision was later turned into a no contest after the American failed a USADA drug test and he subsequently retired.
In 2018 there was talk of a comeback fight against Cormier but an agreement was never reached.
However, Lesnar could still get back in the ring with UFC president Dana White revealing he would arrange a mega-fight between the 43-year-old and Jon Jones if both heavyweights want it.
After becoming the first American woman to earn an Olympic medal in judo after winning bronze at the 2008 games, Ronda 'Rowdy' Rousey entered MMA - making it to the top of Strikeforce women’s bantamweight division and was its final champion before the company was acquired by UFC.
She then entered UFC's first women's bout, becoming bantamweight champion before going on to set a record by defending her title six times.
Rousey won five of her first six fights in the first round, with four of those fights lasting less than a minute. She is regarded as a pioneer of women's sport and is the fighter who changed Dana White's perception of having female weight classes.
Ronda Rousey won five of her first six UFC fights in the first round before going to WWE
The American became one of the most recognisable MMA fighters, appearing in a variety of TV shows and films. Her fall from grace was spectacular, losing the last two of her UFC bouts, the famous head kick TKO from Holly Holm and first round obliteration by Amanda Nunes.
It was then that the WWE came in with an offer and Rousey joined their ranks.
Her debut at WrestleMania34 in a mixed tag team match, competing with Kurt Angle against Stephanie McMahon and Triple H.
Rousey was cultivated into a star from the start, beating McMahon with her trademark armbar submission and overcoming Alexa Bliss to claim her first title later that year.
Rousey was then kept at the top, fending off challenges from Nikki Bella, Mickie James, Nia Jax, Natalya and Sasha Banks. A defeat