Dr Bennet Omalu says children should not be playing rugby or heading the ball in soccer

World Rugby maintained the Berlin gathering had labelled the protocol as ‘field leading’

Karen Walton’s son Benjamin died as result of second-impact syndrome

More awareness about the impact of sport’s invisible injury is vital for player welfare

Clongowes spokesperson says hooker John Molony showed ‘no symptoms of concussion’

Ireland coach also does not feel legal supplement are being abused at any level

Education needed to raise awareness among players of dangers, Oireachtas committee told