With Jurgen Klopp favourite to be the next Liverpool boss, we pick out his best quotes.
Which player received a text when he disapproved of his new club? And with which midfielder did he share in a tearful embrace upon his exit?
Check out some of the best lines from the charismatic German coach…
On his early days
"I had the talent for the fifth division and the mind for the Bundesliga. The result was a career in the second division."
He likes having the ball, playing football, passes. It's like an orchestra. But it's a silent song. I like heavy metal.
"The fans should not only recognise us by our black and yellow jerseys. Even if we play in red, everyone in the stadium should think, 'Who, that can only be BVB'. When you sit in this stadium with your eyes closed, you should sense there is a passionate team on the field below."
"You cannot win without tactical things but the emotion makes the difference."
On the difference between him and Arsene Wenger… "He likes having the ball, playing football, passes. It's like an orchestra. But it's a silent song. I like heavy metal."
Live Euro 2016 Qualifiers
On winning in Munich for the first time... "When BVB last won here, most of my players were still being breastfed."
"We have a bow and arrow and if we aim well, we can hit the target. The problem is that Bayern has a bazooka. But then apparently Robin Hood was quite successful."
"Bayern go about football in the same way that the Chinese go about industry. They look at what the others are doing, and then they copy it with other people and more money. And then they overtake you."
We cried for 20 minutes, in each others' arms, when he left.
"Crazy players love me - I don't know why."
When Shinji Kagawa left… "We cried for 20 minutes, in each others' arms, when he left."
Klopp 'made for Liverpool'
Jurgen Klopp ticks all the boxes, according to Sky Sports' German football reporter Sascha Bacinski.
When Kevin Prince Boateng signed for rivals Schalke… "I'm really surprised. I sent him a text message saying 'Why Schalke????????' with eight question marks, but I didn't hear back from him. He was a good lad, up until this morning."
Following an injury to Mats Hummels… "We will wait for him like a good wife waiting for her husband who is in jail."
After Mario Gotze agreed to join Bayern… "If it's anyone's fault, it's mine. I can't make myself shorter and learn Spanish."
On his 2012 hair transplant… "Yes, it's true. I underwent a hair transplant. I think the results are really cool, don't you?"