The advent of COVID-19, a droplet-transmitted coronavirus pandemic which affected the world in 2020, has put many countries into a state of lockdown. Public health guidance identifies large spectating crowds as increasing the risk of the virus spreading. Moreover, fans may be unable to travel within or between countries to attend sporting events. As a result, a wide range of sporting events (including the 2020 Olympics and Euro 2020) have been postponed and many leagues and competitions globally have been cancelled.