The Premier League may be unfamiliar to Jurgen Klopp, but the newly-appointed Liverpool manager knows one of the managers in the English top flight well.
Klopp has locked horns with Manchester United boss Louis van Gaal before - when the duo were working in Germany.
Van Gaal was in charge of Bayern Munich from the summer of 2009 till April 2011 and saw the rise of the then Borussia Dortmund boss first hand.
Interestingly, the German has a pretty even record against the Dutchman from their time in the Bundesliga.
During the 2009-10 season, Van Gaal’s Bayern hammered Dortmund 5-1 at the Westfalenstadion and defeated them 3-1 at the Allianz Arena.
However, the following campaign, Klopp’s Dortmund won 2-0 against Bayern at home and 3-1 away at the Allianz Arena.
Dortmund won the league title in the 2010-11 season and successfully defended it in the 2011-12 campaign.
Below are some of the best pictures of Klopp and Van Gaal from their time in Germany.