Kuhnert is no stranger to the 52-year-old, having played alongside him for nine years before being a part of his coaching staff with the Bundesliga side.
And he spoke to Goal about a time in which he and Klopp travelled for miles on their bikes to a festival, only to find upon arrival that he had got the date wrong.
He explained: "We both wanted to go to a Schützenfest (a traditional German festival) in the region on a day off at the training camp in Herzlake. So we got on the bikes and rode through the middle of nowhere forever. It was almost really dark and then we finally got there.
"At the entrance to the village we saw a huge sign and it said that the fete didn't take place until a week later. I don't know, I somehow made a mistake. Anyway, we had to cycle all the way back and he insulted me the whole way. I had to take a lot but I deserved it!"
Kuhnert, who has been at Mainz for 30 years, also touched on his unique relationship with Klopp.
"I had a special connection with Kloppo because I played alongside him. No one can match his intense emotion but I always saw eye-to-eye with him.
"He could present ' Wetten, dass..? ' (a famous German TV entertainment show) and wouldn't really have to prepare for it. It just comes naturally. You can see that with the positive interactions he has with his players."