Former Hoffenheim striker Kai Herdling says he appreciated his time with Liverpool.

Herdling, who coaches inside the TSG system, spent time with the Reds and manager Jurgen Klopp as part of his coaching studies.

"That was impressive," he recalled to Kicker of working with Klopp.

"He simply remained human, that's an important character trait. Klopp said: 'It's not rocket science. We play football here.' I think that shows his down-to-earth nature."

But other characters from the industry also impressed him, such as HSV coach Tim Walter: "I find Tim Walter's personality exciting because he's still a man. And if we're honest, men are often missing in football these days."