soccer players now limited to not heading the ball. even during practice/training
american footballers now limited to not tackling others headfirst. even during practice training

..
100 years ago soccer(UK football) was a rivalry game between 2 towns. where it was used to settle disputies between neighbouring towns. injuries were allowed. it was like sanctioned community fight battle and the ball was the measure of which side wins depending on who could get it to their oppositions side more.

now its a 'friendly sport' players get rewarded for claiming they break a toenail. and the opposition get penalised for it.

whats next play sports based on video game plays where no human contact is allowed