Klopp comes from a small village in the Black Forest – "There were 1,500 people there when I left and 1,499 live there now." He is the father of two grown-up sons and his wife, Ulla, is a writer. "She wrote a book for children," Klopp says. "It's like Harry Potter – but it's about football. There's no Harry Potter flying on his fucking stick – just football."