S4 E21: Concussion - Rugby could be 'gradually removed from mainstream culture'

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Gareth Rhys Owen speaks to former Dragons wing Adam Hughes about suing rugby's governing bodies for negligence and Dr Bennet Omalu, the forensic pathologist who discovered the brain disease chronic traumatic encephalopathy (CTE) and rocked American football with his research into the brain injuries sustained by players in the National Football League (NFL).