Dr Patrick O’Halloran is a Sport and Exercise Medicine Registrar in the West Midlands. He is the current matchday Doctor with Worcester Warriors as well as the England Women’s Rugby Pathway Doctor.  Patrick is also a member of the NICE Head Injury Guideline update committee. As part of his work on head injuries, Patrick has been involved in development of the groundbreaking saliva diagnostic test of concussion as a Senior Medical Advisor with Marker Diagnostics UK Ltd