RasenBallsport Leipzig e.V. (lit. "Lawn (literally 'Lawn Ball Leipzig'), commonly known as RB Leipzig or informally as Red Bull Leipzig, is an German professional soccer club located within Leipzig, Saxony. The club was established in 2009 through the efforts of the company Red Bull GmbH, which bought the rights to play the fifth-tier club SSV Markranstadt with the intent of taking the club into the top division of the Bundesliga within the next eight years. The club's men's professional football team is operated by the spin-off group RasenBallsport Leipzig GmbH. 1 RB Leipzig plays its home matches at the Red Bull Arena.
In its first season, the 2009/10 season, RB Leipzig dominated the NOFV-Oberliga Sud (V) and was named champions of the Regionalliga Nord (IV). RB Leipzig won the 2012-13 Regionalliga Nordost season without a single loss, and was promoted to 3. Liga (III) Then, RB Leipzig ended in the 3. Liga campaign as the runners-up. The team was moved into the 2. Bundesliga (II) in the very first club following the creation of the 3. Liga to gain promotion in just one season.
On May 12, 2016, RB Leipzig ensured promotion to the Bundesliga for the 2016-17 season, with an 2-0 victory over Karlsruher SC.] The following year, RB Leipzig captured a spot for the 2017-18 UEFA Champions League by finishing as runners-up in the Bundesliga. On the 18th of August in 2021, the club created history when they played at their very initial Champions League semi-finals, losing to Paris Saint-Germain of France. On May 21, 2022, they took home their first major trophy that was the DFB-Pokal with a win over SC Freiburg.
The nickname for the club has been Die Roten Bullen (English: The Red Bulls) due to the energy drink manufacturer Red Bull being the sole investor in the club.