Jurgen Klopp returns to Borussia Dortmund as Liverpool boss on April 7

Borussia Dortmund are "simply desperate" to beat Jurgan Klopp when Liverpool visit Signal Iduna Park in the Europa League quarter-final, says defender Mats Hummels.

Klopp is still revered by the Dortmund faithful after a successful seven-year spell at the club where he won two Bundesliga titles, the German Cup and took them to the Champions League final in 2013.

The 48-year-old returns to his former side as manager of another club for the very first time on April 7 and Hummels admits the eagerly-anticipated fixture will be an emotional occasion.

Klopp remains a cult hero in Dortmund

"The tie with Liverpool is one where we are simply desperate to beat Klopp. We have to beat him," Hummels told German Broadcaster ZDF.

"Of course, he will get a warm welcome and a warm farewell. But I hope to drive him mad in between.

The tie with Liverpool is one where we are simply desperate to beat Klopp. We have to beat him. Mats Hummels

"There will be a lot of media attention and it will be something special for the players to meet Klopp again. It will be very interesting, also on an emotional level.

"But I try not to think about it too much yet. I already said after we were paired with Liverpool that we will start thinking about it when the game is actually around the corner."