Just refereeing doesn’t always pay the bills for some of the games top whistleblowers, including Ben O’Keeffe, Nigel Owens and Wayne Barnes.
Here’s the rundown on how they make extra cash when not taking to the field.
#1. Ben O’Keeffe – Eye Doctor
One of New Zealand’s six full-time referees, O’Keeffe is also a qualified doctor specialising in ophthalmology, which deals with eye health and disease.