Norwich City defender Christoph Zimmerman admits he has had an experience with Liverpool boss Jurgen Klopp.
Zimmermann first came across Klopp when the pair were at Borussia Dortmund.
The 6ft 4in defender told The Sun: “He left in 2015. I was there in 2014 after the World Cup in Brazil and not all the internationals were back.
“The first team were short of players so I joined them at a pre-season training camp in Switzerland and played in a couple of friendlies.
“So, yes, our paths crossed a little. But I don't know if Klopp remembers. David Wagner was in charge of the second team and he was close with Klopp, there was always communication between both teams."