In the first installment of this four-part series, an initial look at some of the men behind the whistle of the most important games in the sport. As this episode shows, preparation for top referees, just like elite players, goes far before setting foot on the pitch.

In the third installment of this four-part series, the proper role of an elite referee is explored, and officials navigate COVID lockdown in Europe while trying to keep their families, and the game, safe through the unknown.