The enigmatic coach spent seven successful seasons in the Bundesliga with Dortmund, leading the club to two league titles, one German Cup triumphs and two German Super Cups.
Klopp makes his first return to Signal Iduna Park on Thursday after leading his Premier League outfit into the quarter-finals of Europe’s secondary club competition.
The 48-year-old boss is expected to receive a warm welcome by the Dortmund faithful, with whom he shared a strong positive relationship throughout his tenure.
However, ahead of the away trip, Klopp has been forced to play down his connections with the German heavyweights.
Known for his wild celebrations and exuberant animations, the Liverpool boss says he will not be changing his style despite facing his former club.
“Of course I will celebrate. I did it when I came back to (previous team) Mainz with Dortmund — and I was there for 18 years,” he is quoted in his pre-match press conference by The Sun.
“If, after seven years, they don’t know me well enough that I will celebrate if my team score.
“If it’s in the first minute I won’t go running down the line. But if it’s important, if it’s decisive, at that moment then that’s what happens.
“It’s not that I plan it, but I will not go there and take pills which mean I won’t celebrate a goal.”
Liverpool fans will therefore be hoping to see their enigmatic German in full flow later this evening.