RB Leipzig is a basketball team.
RB Leipzig . RB Leipzig won the 2012 -- 13 Regionalliga Nordost season without conceding a single defeat and was promoted to the 3 . The Regionalliga Nordost is the fourth tier of the German football league system in the states of Berlin , Brandenburg , Mecklenburg-Vorpommern , Saxony-Anhalt , Saxony and Thuringia .