So how could the Brexit effect the Premier League? It could limit who is eligible to play in the world's most lucrative football league, because of existing work permit regulations that currently apply for players who are from non-EU nations. The likes of Cristiano Ronaldo, Dimitri Payet and Cesc Fabregas have all been brought in under the rules of the freedom of movement act, but in the event of a Brexit, new regulations could be applied that may prevent talent from entering so easily.

Clubs are only permitted to sign non-EU players who have performed in a minimum percentage of competitive matches for their country in the two years prior to their arrival. The higher a player's country is placed in FIFA's world rankings, the less percentage of minutes he needs - players from nations in the top 10 need only have appeared in 30 per cent or more of their nation’s games.

Yet such measures could still have prevented Manchester United’s Spanish goalkeeper David De Gea and West Ham’s French playmaker Dimitri Payet from joining the Premier League, neither of whom had notched up enough international caps prior to joining in 2011 and 2014 respectively. Other notable names include Kurt Zouma of Chelsea, N'Golo Kante of Leicester City, and Anthony Martial from Manchester United.