Red Star Belgrade

Red Star Belgrade (Serbian: Фудбалски клуб Црвена звезда Београд / Fudbalski klub Crvena zvezda Beograd, ) or simply Red Star, is a professional football club based in Belgrade, the major part of the Red Star Sports Society and the most successful club in Serbia, with a record of 25 national championships and 24 national cups in both Serbian and ex-Yugoslav competitions. Red Star was also the most successful club in former Yugoslavia and finished as 1st the Yugoslav First League all-time table. They are the only Serbian (and ex-Yugoslav) club to have ever won the European Cup, having done in 1991, and the only team from the Balkans and Eastern Europe to have ever won the Intercontinental Cup, which it won also in 1991. In the following season, Red Star reached the semi-finals of the UEFA Champions League. Before they reached 1957, 1971, the semi-finals, as well as 1958, 1974, 1981, 1982, 1987 the quarterfinals of the European Cup. In 1979, they reached the UEFA Cup final, but lost unhappily against Borussia Mönchengladbach. Also, they reached 1975 the semifinals of the UEFA Cup Winners' Cup. Red Star is the most successful club from the Balkans and Eastern Europe being the only club which was both European and World club champion. Many analysts believe that if wasn't yugoslav war Red Star could have gone on to become one of the greatest football clubs ever.

According to recent polls, Red Star Belgrade is the most popular football club in Serbia, with nearly 48.2% of the population supporting them. The club is also very popular in Montenegro and Republika Srpska. They also have many supporters in all other former Yugoslavian republics and in the Yugoslav diaspora. Their main rivals are fellow Belgrade side, Partizan. The championship matches between these two clubs are known as The Eternal derby. In September 2009, British Daily Mail ranked the Red Star – Partizan derby 4th among the 10 greatest football rivalries of all time.

According to the International Federation of Football History & Statistics' list of the Top 200 European clubs of the 20th century, Red Star Belgrade is the highest ranked Serbian and ex-Yugoslavian club, sharing the 27th position on the list with Feyenoord. In 2011, American Bleacher Report ranked Red Star among the Top 50 most influential teams in the world.