Lille OSC

Lille Olympique Sporting Club (French pronunciation: [lil ɔlɛ̃pik spɔʁtɪŋ klœb]), commonly referred to as LOSC, LOSC Lille or simply Lille, is a French professional football club based in Lille, Northern France competing in Ligue 1, the top division of French football. Lille have played their home matches since 2012 at the Stade Pierre-Mauroy. The 50,186-capacity retractable roof venue is the fourth-largest stadium in France.

Lille were founded as a result of a merger between Olympique Lillois and SC Fives in 1944. Both clubs were founding members of the French Division 1 and Olympique Lillois were the league's inaugural champions. The club's most successful period was the decade from 1946 to 1956, in the post-war period, when the first-team won seven major trophies, including a league/cup double in 1946, and was known as La Machine de Guerre (French for "The War Machine"). Having won another double in 2011, their fourth league title in 2021 as well as their first Trophée des Champions the same year, Lille are the fourth best French club in the 21st century.

In domestic football, the club has won a total of four league titles, six Coupes de France and one Trophée des Champions since its foundation. In European football, Lille have participated in the UEFA Champions League nine times, reaching the knockout phase three times, competed in the UEFA Europa League on nine occasions and got to the UEFA Conference League quarter-finals once. They also won the UEFA Intertoto Cup in 2004 after finishing as runners-up in 2002. Lille are also one of the few clubs, still in the first division, to have at least 15 final top-three appearances in the history of the French championship.

Nicknamed Les Dogues (French for "The Mastiffs"), Lille are known for their academy which has produced and trained notable graduates. Throughout their history, they have cultivated a reputation for scouting and developing young players. Lille is the best club in the world regarding the financial balance of transfers concerning non-academy players signed since 2015, according to the CIES Football Observatory. They have a long-standing rivalry with nearby side Lens, in which Lille lead in the head-to-head record and in terms of total trophies won. Chaired by Olivier Létang, they are the fifth-most followed French sports club on social media.

Before the Second World War, the city of Lille had two clubs at the top level; Olympique Lillois and SC Fives. Olympique Lillois were crowned domestic champions in 1932–33, the first in the history of the championship that was created in 1932, and were runners-up in 1935–36. They also earned a USFSA Football Championship title in 1914, the French football top division before the creation of the French Division 1, and went to the Coupe de France final in 1939. Their neighbours, SC Fives, ranked second in 1933–34. They also went to the Coupe de France final, being defeated by Girondins AS Port in 1941. Weakened by the war, the two clubs decided to merge in the autumn of 1944, on 23 September, giving birth to Stade Lillois, renamed Lille Olympique Sporting Club a few weeks later. On 25 November 1944, the club is officially registered under its new name.

For its first season, the newborn club reached the 1945 Coupe de France final, with a squad composed of the best players of both merging teams, who are mostly natives of the Nord department. Next season, Lille won the double, beating Red Star in the 1946 Coupe de France Final and finishing at the first place of French Division 1 ahead of Saint-Étienne and Roubaix-Tourcoing. In 1947, Lille finished in the fourth place but came back to the Coupe de France final and retained the trophy, defeating Strasbourg. The club won the cup again in 1948 beating main rivals Lens, its third in a row, and were runners-up of the league the same year, behind Marseille that became the champions after a strong 1947–48 season finishing. They were also runners-up in 1948–49, 1949–50 and 1950–51. On 24 June 1951, an exhausted Lille reached the Latin Cup final and lost against Gre-No-Li's AC Milan after having played 250 minutes in the span of two days.

On 31 May 1953, they got back to winning and earned their fourth Coupe de France trophy in a 2–1 final win against FC Nancy, before 60,000 spectators. The club then won its second domestic title in 1953–54, having only conceded 22 goals within 34 games. After this season, Lille is praised for its defensive proficiency and acquired a reputation as a rock-solid defense. A year later, Les Dogues earned their fifth Coupe de France in a 5–2 win against Bordeaux in the final. This period of glory and hegemony, occurring after the war and the German occupation of France, has led to one of the club's nicknames: La Machine de Guerre (French for "The War Machine"). Within its first decade of existence, the club gathered the vast majority of its major trophies, winning two league titles and reaching the second place for four consecutive seasons. Lille, known as the best French club in the post-war period, accumulated five Coupe de France wins in seven finals, including five successive finals and winning the trophy three times in a row, one of the best performances in the history of the tournament.

The 1955–56 season happened to be highly complicated. The club suffered from internal conflicts, Louis Henno [fr] was contested and certain players refused to play some matches. In the field, the Northmen were way too irregular and crumbly in defense, and finished in 16th place. Lille were relegated for the first time in their history in 1956. This relegation is accompanied by aggravating financial consequences. Best players' departure is necessary to cover debts which are becoming substantial. Failing to rebuild a top team due to the increasingly poor financial situation, the club began a series of promotions and relegations. Promoted in 1957 by beating Rennes, Lille initially ended up to an unexpected 6th place. The club then finished in eighteenth place the following season; being relegated a second time. After a few years spent in Division 2, the club became a mid-table side in the late 1960s. From 1964 to 1968, the club managed somehow to avoid relegation to the lower level. After a long drought, the worst occurred when Lille abandoned its professional status on 23 June 1969, lacking facilities and resources.