On Friday night, heavy metal meets rock and roll at last.
Daniel Farke and Jurgen Klopp have travelled similar roads, but until now their paths have never crossed.
Farke's Norwich return to life in the Premier League at Anfield and the 42-year-old is in no mood for pleasantries.
'It's not the time in this business to sit together with the German coaches and do some philosophy about football and life,' Farke said.
Farke has never worked with, or against Klopp, but the shadow of the Liverpool manager has long loomed large. Farke took over Borussia Dortmund's second XI months after Klopp left the club in 2015.
David Wagner and Jan Siewert also coached at Dortmund, while Thomas Tuchel replaced Klopp there and is now at Paris Saint-Germain.
Farke admits Klopp has been a role model and a 'door opener for other German coaches', though he feels that he is more rock and roll than Klopp's heavy metal.
'We are pretty much a possession-based side. We want to control the game,' he said of Norwich.
The Canaries boss has called Liverpool 'probably the best team in the world'.
Farke said, 'I can't speak highly enough about Jurgen Klopp. The job he's done at Liverpool is outstanding.'
On Friday, though, is more than a meeting of two coaches off the Dortmund conveyor belt.
'You have to judge not in general — we're different coaches, different style,' Farke said. 'I wouldn't say it's coincidence because Borussia Dortmund is always looking for good coaches.'
For Farke, it's been a long road from the town of Lippstadt, where he first made his name as a striker, and later as a 'very successful' coach.
After they took a punt on him, Farke helped transform the fourth-tier side, who play in the same league as Dortmund's second team.
'After Norwich reached the Premier League I sent him a text,' Lippstadt club president Thilo Altmann reveals. 'I got an answer very quickly. So his character is the same as years before.'
Farke caught the attention of Dortmund after six impressive years at Lippstadt. 'He had a special talent of thinking like a coach,' said Altmann. 'It's hard to describe but he was a special player… we knew he had a talent for more.'
Altmann still keeps an eye on Farke's progress but even now he plays second fiddle to the club's more famous sons: brothers Karl-Heinz and Michael Rummenigge.
For much of his time in England he has lived in the shadow of Klopp, too. Victory on Friday would help change that.