“That’s the kind of football we want to play one day,” said Jürgen Klopp after his Borussia Dortmund side were beaten 4-1 by Ralf Rangnick’s Hoffenheim in a Bundesliga fixture in September 2008. Vedad Ibišević (twice), Sejad Salihović and Carlos Eduardo struck for the Sinsheim club to seal an emphatic win in their first-ever season…