Leaving Stamford Bridge at just after midnight and there still being supporters just outside the ground singing songs about their club – you know it was a special night.
That it was. It will go down in the history books at Chelsea. Yes, they came into the tie against German giants Borussia Dortmund as favourites, but they were made to work really hard for it and it's no surprise given the current circumstances at the west London club.
In recent weeks, Graham Potter has come under huge pressure. Many supporters want him out. Going on social media after the game, that looks to still be the case but even his biggest doubters can admit he got things right at Stamford Bridge against Dortmund.