Just 11 years separate RB Leipzig's formation and their first Champions League semi-final.
Here, the PA news agency examines the Bundesliga club's rapid rise through the ranks.
Formation
Austrian drinks manufacturer Red Bull bought fifth-division German club SSV Markranstadt in 2009, promptly renaming the club RasenBallsport Leipzig. The RB prefix was no coincidence, standing technically for "law ball sports" but obviously referencing the club's new corporate owners. A new crest and kit came along with the new name.
Rise through the ranks
It took just seven years for RB Leipzig to make it to the Bundesliga. Major investment catapulted Leipzig from regional status to top-flight power in the footballing pyramid climb equivalent of a flash. A fifth-place finish in Bundesliga 2 in 2015 forced a second season in the second tier, whereupon Leipzig finished second and duly won promotion to the top-flight.
Ownership controversy
RB Leipzig's ownership model is widely decried among football supporters in Germany. The German FA's 50+1 rule means clubs must hold a majority of their own voting rights, to limit the influence of big investors. Only investors who have held a 20-year investment with a club can apply for exemption to the rule. Leipzig abide by the rule but while other clubs in Germany boast thousands of fans as voting members, those full rights are not extended to supporters. Protests were wide and varied on Leipzig's Bundesliga ascent, but the Red Bull impact is here to stay.
European dream
Leipzig went a record 13 matches unbeaten from their Bundesliga debut, eventually finishing in second place and reaching the 2017-18 Champions League. Influential boss Ralf Rangnick – who has been involved with the club since 2012 – stepped up to director level to allow Julian Nagelsmann to take the managerial helm. The 33-year-old has thrived despite his relative youth, steering Leipzig to that maiden Champions League semi-final against Paris St Germain with a gritty 2-1 victory over Atletico Madrid, having swept aside Jose Mourinho's Tottenham in the last 16.
