Ever since Antonio Inoki fought Muhammad Ali in a mixed-rules bout in the 1970s, the line between MMA and pro-wrestling has been crossed on numerous occasions, but recent years have seen the barrier between "real fighting" and "sports entertainment" become increasingly blurred.
This has been evident over the past two months, as former UFC Heavyweight Champion Cain Velasquez made his WWE debut in October's Crown Jewel show, while Dwayne "The Rock" Johnson was at Madison Square Garden to hand Jorge Masvidal his "BMF" belt at UFC 244 (it's a long story).
While most of us cringe at the thought of CM Punk's two UFC outings or Tito Ortiz's attempts to deliver a promo on Impact, there's been a number of MMA fighters and pro-wrestlers who've found success in the opposite field. These may be ex-fighters giving their career a second wind in the squared circle or pro-wrestlers answering their critics to prove themselves as legitimate athletes.
This list counts down the most high-profile MMA and pro-wrestling transitionees, with the top ten order determined by their cumulative success in both disciplines.