The sprinklers were already running at Selhurst Park when the whistle went. The pitch gleamed under the floodlights, and the players in red and blue did not seem to know what to do with their legs. Some stood still. Some dropped to their knees. Jean-Philippe Mateta, who had scored the goal that mattered, was somewhere underneath a pile of his teammates, though you could only tell by the boots sticking out.

Crystal Palace are in a European final. That sentence has never been written before, not in the club’s 119-year history, and the strangeness of it hung in the south London air like something not quite believed. They will face Rayo Vallecano in the Conference League final after a semi-final second leg that was, for long stretches, an exercise in controlled anxiety rather than celebration.

The key moments were few and each one arrived with its own small catastrophe of nerves. Mateta’s header, the goal that effectively sealed the tie, came from a set piece Palace had worked on in training all week. Glasner confirmed as much afterwards, though he was careful to credit the delivery as much as the finish. There were chances to kill the game earlier. There were moments, too, when the visitors threatened to rewrite the script entirely. Each time, Dean Henderson’s goal felt like a fortress that had decided, on its own, not to fall.

Glasner, speaking to Sky Sports, was measured in the way managers are when the achievement is bigger than the language available to describe it. “This makes me proud,” he said. “What the players have done, what the fans have created here, it is something special.” He paused, the way people do when they are selecting which part of the truth to give. “We go to the final now. We go to win.”

The Austrian has been at Selhurst Park long enough to understand what this means beyond the pitch. Crystal Palace have never won a major trophy. They have come close, in the way that close is a word south London knows too well. The Conference League final will be played in a city and on a stage that does not yet feel real to anyone in red and blue.

Outside, the fans lingered. They sang, and the singing carried down Holmesdale Road, and into the night, as though the night itself might hold the sound for them.