There's going to have to be a rule that if you knee someone in the back of the head straight on in the marking contest it's a free against. Possibly with a Video Assistant Referee calling it.Horrible new for the bloke
West Coast defender Brad Sheppard has announced his immediate retirement, as he continues to deal with concussion symptoms.
He is the second Eagle this year to call time on his AFL career because of concussion, with Daniel Venables detailing how the brain injury has impacted on his everyday life.
Sheppard made his decision after receiving medical advice and with his long-term health in mind.
Nobody wants that, but I don't see another way.
Got to learn to turn your knee to the side and use the shin as the platform I think.