If that last challenge didn't quite exhaust your tactical reserves, we have plenty more in the locker to keep you occupied, all courtesy of Kwizly. We'll start with a test of loyalty and longevity under one of the game's most demanding managers. We want to see if you can name Marcelo Bielsa's most-played players. It is a fascinating look at the individuals who survived the intense physical demands of 'Bielsa Ball' across his various spells in club and international management.
Legendary manager Marcelo Bielsa has taken charge at four clubs since 2000 and we want you to name the five players he selected most often at each one of them to make up a total of 20 trusted regulars for you to find. We've given you just 10 minutes to put your knowledge of Athletic Club, Marseille, Lille and Leeds United in this quick-fire football quiz.