It is a relationship that saw its roots put down some 10 years ago.
When current Manchester United interim manager Ralf Rangnick took on the director of football roles at both RB Leipzig and Red Bull Salzburg it would provide the Liverpool with an 'in' to a relationship that has served them well so far, and one that could well do so for some time to come.
It wasn't until Liverpool owners Fenway Sports Group landed their number one target in Jurgen Klopp in 2015 that things really clicked into gear, with Klopp a long-time friend of Rangnick, and someone who had been influenced heavily in his own management style by the so-called 'Godfather of the Gegenpress'. The high energy method of counter-pressing, something which he is credited with playing a significant role in the rise of through the influence he has had on the likes of Klopp, Thomas Tuchel and Julian Nagelsmann, has been the hallmark of Liverpool under Klopp, a style of play that has helped them return the club to its former glories at the summit of the domestic and European game.