Borussia VfL 1900 Mönchengladbach e.V., commonly known as Borussia Mönchengladbach, Mönchengladbach or Gladbach, is a German association football club based in Mönchengladbach, North Rhine-Westphalia. Founded in 1900, Borussia Mönchengladbach play in the Bundesliga, the top tier of the German football league system, making their first appearance in the league during the 1965–66 season. Subsequently the club became one of Germany's best-known, best-supported, and most successful teams, winning the Bundesliga five times during the 1970s. Since 2004, Borussia Mönchengladbach have played at the 54,057 capacity Borussia-Park, having previously played at the smaller Bökelbergstadion since 1919. Borussia-Park is famous for its "Nordkurve" (or North stand), a single-tiered stand. Borussia Mönchengladbach has over 60,000 members as of September 2013 and is the fifth largest club in Germany. Their main rivals are 1. FC Köln. "Borussia" is a Latinized form of Prussia, a popular term in naming German clubs located within the former Kingdom of Prussia. The club's nickname is Die Fohlen (The Foals), coined in the 1970s due to having a young team with a fast, aggressive playing style. The official mascot of the club is the foal Jünter. Borussia Mönchengladbach were formed as FC Borussia in 1900 in the Eicken district of Mönchengladbach. Borussia derives from the Latinized form of Prussia, the Kingdom in which Mönchengladbach was situated from 1815. By 1912, Die Borussen found themselves in the Verbandsliga, at the time the highest division the club could play in. In March 1914, the club purchased De Kull, the ground on which the Bökelbergstadion would be built. The First World War halted the progress of both the stadium and FC Borussia, but by late 1917 the team had begun to play games once more. In 1919, FC Borussia merged with another local club, Turnverein Germania 1889, becoming 1899 VfTuR M.Gladbach. The club tasted its first major success in 1920, beating Kölner BC 3–1, thus winning the Westdeutsche Meisterschaft final. The union between Germania and Borussia only lasted a matter of two years; the club was thereafter known as Borussia VfL 1900 e.V. M.Gladbach.

Stadion im Borussia-Park

RasenBallsport Leipzig e.V., commonly known as RB Leipzig, is a German association football club based in Leipzig, Saxony. The club was founded in 2009 by initiative of the company Red Bull GmbH—which purchased the playing rights of a fifth-tier side, SSV Markranstädt, with the intent of advancing the new club to the top-flight Bundesliga within eight years. Men's professional football is run by the spin-off organization RasenballSport Leipzig GmbH. RB Leipzig plays its home matches at the Red Bull Arena. In its inaugural season in 2009–10, RB Leipzig dominated the NOFV-Oberliga Süd (V) and was promoted as champions to the Regionalliga Nord (IV). RB Leipzig won the 2012–13 Regionalliga Nordost season without a single defeat and was promoted to the 3. Liga (III), then finished the 2013–14 3. Liga season as runners-up and was promoted to the 2. Bundesliga (II) as the first team since the introduction of the 3. Liga to win promotion after only one season. On 8 May 2016, RB Leipzig ensured promotion to the Bundesliga for the 2016–17 season with a 2–0 win over Karlsruher SC. One year later, RB Leipzig captured a place in the 2017–18 UEFA Champions League by finishing as runners-up of the Bundesliga.