English rugby's decision not to sanction Northampton Saints for their handling of George North's concussion against Leicester has been widely criticised, with one former international branding it "a disgrace".
The rugby players' union (RPA) and a brain injury charity also took issue with the conclusion of a three-man RFU panel that the club did not deserve punishment despite wrongly allowing the Welshman to resume playing after sustaining the injury in the premiership game earlier this month.
Wednesday's findings prompted a fierce debate in the sport about player welfare, with former South Africa international Alistair Hargreaves, who was forced to retire earlier this season following a concussion injury, expressing outrage.
"Is that what we call player welfare? What a depressing day for rugby," the former Saracens captain wrote on Twitter.
"Decision made by CMRG (Concussion Management Review Group) is a disgrace."