Pep Guardiola offered a sobering reflection on the eve of Manchester City's crucial Champions League quarter-final second leg against Borussia Dortmund.
'If I retire now, or in five or 10 years, what happened in my career, it was completely unexpected when I started,' he said.
'I'm most grateful to the clubs, for the players I've had, the way we played and the way we've done it.
'These are words and theories that make me so grateful and happy but this is a business.
'And the business is to win.