Diego Simeone is considered as one of the world's best managers for his work at Atletico Madrid over the last decade.
Atletico have been unable to compete with the financial muscle of Real Madrid or Barcelona, but through Simeone's work, they have earned their place among Europe's most elite clubs. It has been achieved by determination, tenacity and great tactical nous.
Simeone has led Atletico to two La Liga titles, the Copa del Rey, two UEFA Europa Leagues, two UEFA Super Cups and to finishing runner-up in the Champions League twice. They've won hearts along the way, heading into games with an 'underdog' status - Atletico ironically spent £110m on Joao Felix in 2019 - which has somehow survived despite their club regularly contending for major honours.