RasenBallsport Leipzig e.V., commonly known and deliberately promoted as RB Leipzig, is a German association football club based in Leipzig, Saxony.
In their inaugural season in 2009–10, RB Leipzig dominated the NOFV-Oberliga Sud (fifth division) and as a result were promoted as champions to the Regionalliga Nord (fourth division) for the 2010–11 season. In the 2012–13 campaign, RB won that league without conceding a defeat and was promoted to the 3. Liga (third division). RB Leipzig was runner-up in 2013–14 and was promoted to the 2. Bundesliga.
RB Leipzig's stadium is the Red Bull Arena, the premier football facility in the former East Germany. It is the largest football stadium in the former East Germany and has also hosted music concerts as well as football.