Lille Olympique Sporting Club, commonly referred to as LOSC Lille, is a French professional football club based in Lille, Hauts-de-France that competes in Ligue 1, the top flight of French football. Lille has played its home matches since 2012 at Stade Pierre-Mauroy, the fourth-largest football stadium in France. The 50,186-capacity retractable roof venue replaced the club's previous home of Stadium Lille-Metropole. n domestic football, the club has won four league titles, six Coupes de France and one Trophée des Champions since its foundation. In European football, Lille has participated in the UEFA Champions League eight times.