Wrestlers are amongst the fittest athletes out there.
I always remember seeing I think it was the original Tough Enough series where they showed a training session at the very beginning, and do many people just throwing up, and that was after just one session!
Just try and imagine doing a Hbk v Bret Iron Man match, going for sixty minutes (actually longer), the only people that could possibly understand this is what the match is named after, iron men (the sport with swimming, cycling send running).
Not only do you have to be athletic, you also have to be entertaining as well.
It is such a hard, hard combination to get right, and unlike other athletic events, where you can be dull as dishwater, yet be good, that simply wouldn't be acceptable here.
So to those people who have said to me it is fake etc, (and over the years, there have been quite a few), I always say, go ahead, give it a go if it is that easy, but I bey you will not be able to hack one training session, let alone a single match!
It is very easy to mock, but a heck of a lot harder to actually do this, nevermind do it well and to a very high degree.