RB Leipzig's shock <a href="https://www.thenational.ae/sport/football/atletico-madrid-crack-under-pressure-of-long-season-as-leipzig-seal-historic-win-1.1063471">quarter-final win over Atletico Madrid</a> saw the German club set up a Champions League semi-finals matchup against Paris Saint-Germain. Under Julian Nagelsmann, 33, Leipzig are also challenging Bayern Munich's domination of the Bundesliga. Here are a few things you must know about the German club: • Leipzig were founded in 2009 when Red Bull took over the licence of fifth-tier side SSV Markranstaedt, near Leipzig. The city of Leipzig was chosen after advice from Germany legend Franz Beckenbauer, a friend of Red Bull owner Dietrich Mateschitz. • The team moved up Germany's league system with four promotions in seven seasons. As recently as 2013/14, they were still in the third division. • They reached the Bundesliga in 2016/17, making a flying start by briefly keeping Bayern Munich from first place in the league table before finishing second. • However, their Bundesliga arrival was met with hostility by Germany's big clubs, unhappy about their commercialism. Under the league's '50+1' rule, clubs must hold a majority of their own voting rights but all Leipzig members are Red Bull employees. • Leipzig beat Borussia Dortmund 1-0 in only their second Bundesliga match. • Things got out of hand in February 2017 when a group of Dortmund supporters attacked visiting Leipzig fans, resulting in injuries. • Leipzig have always resisted the urge to use Red Bull's huge finances to buy established stars. • After becoming one of the Bundesliga's best central midfielders, Naby Keita was 23 when Liverpool signed him in 2018 for around €60 million (Dh260m). • Timo Werner, 24, joined Chelsea in June after scoring 34 goals for Leipzig last season. Captain Yussuf Poulsen, a veteran at 26, was signed in 2013-14 when Leipzig were in the third division. • In Nagelsmann, signed last season from Hoffenheim, Leipzig secured arguably Germany's brightest coaching talent, nicknamed 'Mini Mourinho'.