concussion in sport and return—to—play protocols. and paul mccrory? paul mccrory was and is an australian sports doctor. he was one of the driving forces behind the concussion in sport group in rugby and other sports essentially relied on the concussion in sport group, and it was constantly telling people that there were no proven causal links between repetitive head injuries and long—term neurodegenerative problems. the concussion in sport group says it provides guidance on the latest research. it's made up of voluntary members. most of them also work with the governing bodies of contact sports worldwide. its chairman, paul mccrory, was forced to resign in 2022 after being discredited for copying other people's work. what's been evidenced now is that a lot of his work wasn't fit for purpose, and i wasn't surprised when mccrory was exposed as a plagiarist a couple of years ago. the challenge now for sport is to really understand his denial of previously accepted medical science, and how that's still influencing sport to this day. are the rfu or world rugby tarnished by their association with mccrory? yes, i believe they are, and the concussion in sport group, upon which t