0340 GMT October 23, 2019
Klopp announced his decision to quit in April, following a seven-year stint in which he led the team to two Bundesliga titles, a DFB-Pokal and a Champions League final, europsort.com reported.
And Langerak admits that he and his fellow players could scarcely believe what they were hearing — not least because Klopp still had three more years on his contract.
"It was a shock for everybody, myself included," he told Perform.
"For all the players it was an emotional time. It was an end of an era.
"We had such a successful time together. For all the boys it was a bit of a shame.
"He was there for seven years, I was there for five of those and probably the five most successful. We won titles and reached some great times as a team. It was fantastic to be part of that."
Langerak, an Australian international, also paid tribute to how much help he received from Klopp.
"He had a massive impact on my career," he said,
"When I came to Germany I was quite young . I knew I was coming to a massive club and it wasn't going to be easy, but he definitely made the transition smooth for me. Over time I got my chance and played some games under him.
"As a person, as a coach, his mentality is brilliant. He's very charismatic and passionate. You know what you are going to get. If you perform or you give everything you have, he will be happy regardless of the outcome of the game.
"If you take his instructions, you will never have problem with him and that is something he told me in my first meeting with him before I signed."