However, given that football is by its very nature a contact sport, there will inevitably be a few bumps during a game.
Fifty-fifty tackles have to be won, high balls have to be headed away before the opposing player gets there and so on.
Dangerous play such as boots to the face, flying elbows, knee-breaking challenges and stamping etc have no part in the game.
So for two Premier League managers to starting whingeing about Hearts' pressing tactics (playing high up the park and not allowing opponents both time and space on the ball), you have to ask yourself one question.
What would their reaction be had Hearts put on a display of kung-fu instead?
The respective gripes have their roots in Aberdeen.
Aberdeen manager, Derek McInnes, threw his toys out of the pram after Hearts had knocked his side out of the Scottish Cup.
The Edinburgh men played the game at a fast tempo and kept pressing up the park in order to force the Dons into mistakes - which they did in abundance.
Yet McInnes spat the dummy out out and moaned about how his precious, fragile little Dons had their dinner money stolen from them by the nasty big boys in maroon.
Every day when McInnes clocks into work at Pittodrie Stadium, he will walk through a corridor en route to his office that has pictures of Aberdeen's greatest-ever side.
The one Alex Ferguson managed in the 1980s.
A side blessed with skill but was not adverse to getting in your face.
In order for the likes of Gordon Strachan, Peter Weir et al to flourish, the likes of Neale Cooper, Neil Simpson and Willie Miller had to be physical in winning the ball for them.
They were very good at it as well - you don't become one of the top sides in Europe without skill and the ability to wrestle control of the ball from your opponents.
Which is what McInnes' side failed to do in the cup a week and a half ago and they paid for it.
The other moan came from Motherwell manager Mark McGhee - who should have known better.
Why? Because McGhee played in that great Aberdeen side of the 80s.
Once Cooper won that ball and fed it to Strachan, it would usually be McGhee that was the ultimate beneficiary as he would get chance after chance to stick the final ball in the net.
So for him, before last Saturday's Hearts v Motherwell clash, to start harping on about Hearts being 'physical' seemed rich.
If one was being generous to McGhee, his comments could have been interpreted as being 'mind games' designed to influence the referee into giving more free-kicks Motherwell's way.
Even so, all it did was do Hearts manager Robbie Neilson's teamtalk for him.
Hearts picked up from where they left off from the Aberdeen match (and the referee had not bought any of McGhee's naff attempts at psychology) and duly thrashed Motherwell 6-0.
All such talk did was highlight to Hearts - and everyone else for that matter - how fragile Motherwell's underbelly was.
And so it proved.
Meanwhile, Aberdeen won their match against Ross County.
In doing so, McInnes' pillars of clean football had a man sent off.
Seems the Dons learnt a valuable lesson from their cup exit after all.