Top 20 most valuable teams in the world: Arsenal and Chelsea in top ten

19. Olympique Marseille (£285m)

Olympique de Marseille are the only French club ever to win the UEFA Champions League – albeit in slightly unsavoury circumstances – but their historic greatness means they are the second most valuable Ligue 1 team on Forbes’ list despite the recent financial power boasted by Paris Saint-Germain and AS Monaco.