Death threats to Mike Dean (ref) and his family

[redhouse]

More worrying was that Mason was basing his decision on the player having clenched fists, even though fists never came into it.

I think the clenched fist theory is that if you've clenched your fist and elbowed someone you have meant to whereas if your fist is not clenched you've elbowed them accidentally . Which you can see to a point if you are stood but if you are jumping for a high ball you are more likely to have your fists clenched whilst moving your arms anyway