RB Leipzig is a basketball team.
Bundesliga . Bundesliga [ ˈeːɐ̯stə ˈbʊndəsˌliːɡa ] ) , is a professional association football league in Germany and the football league with the highest average stadium attendance worldwide . The NOFV-Oberliga Süd is the fifth tier of the German football league system in the southern states of former East Germany . RB Leipzig . 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 ) .