There are many reasons why Manchester United's triumph in Europe's second biggest cup competition was important last night.
It brought joy to a city that needed it. It was the only missing achievement in the club's history. It enabled Jose Mourinho to go absolutely bats**t and run around the pitch waggling three fingers at everyone to signify the trophy haul of his maiden season (along with the Charity Shield and the League Cup).
Above all though, it means Man United can offer the world's elite players the chance to play at the highest level next season in the Champion's League – something put to Jose in his post-match interview, to which he immediately laid down the gauntlet to the club's executive vice-chairman Ed Woodward.
"[He] has my analysis, what I want, what I would like for more than two months," Mourinho said.
"So now it's up to him, to the owners and for the people who work with him. So I'll just wait."
Man United's protracted courtship of Atletico's Antoine Griezmann – who has suggested he would only join the club if they won last night – as well as potential moves for three of the young players who lined up against them for Ajax last night (Kylian Mbappe, Bernardo Silva and Fabinho) were all presumably on Jose's wish list.
But in the meantime, after what he described as his "most difficult season as a manager", Mourinho insisted he was already in holiday mode.
"But I don't care about football for now," he said.
For some reason, we're not entirely convinced.