I was there the night Brighton & Hove Albion claimed a famous 4-0 victory over Manchester United at the Amex Stadium. The atmosphere was electric, the crowd in full voice, and the players on the pitch put in a performance that will live long in the memory of Seagulls fans.
It was a night that had been building for years. Brighton had been gradually improving under the management of Graham Potter, and they had started the season in excellent form. Manchester United, on the other hand, were in a state of disarray. They had lost their opening two games of the season and were struggling to find any consistency.
From the first whistle, it was clear that Brighton were up for the challenge. They pressed United high up the pitch and forced them into mistakes. United's defense was all over the place, and Brighton took full advantage, scoring four goals in the first half.
The second half was more of the same. Brighton continued to dominate possession and create chances, while United looked like a shadow of the team that had won the Premier League title just a few years ago.
The 4-0 victory was a statement of intent from Brighton. It showed that they were a team to be reckoned with and that they were capable of competing with the best teams in the league.
For Manchester United, the defeat was a major setback. It deepened the crisis that had been brewing at the club, and it led to the sacking of manager Ole Gunnar Solskjaer.
The fortunes of Brighton and Manchester United have gone in opposite directions since that night at the Amex Stadium. Brighton have continued to improve, and they are now established as a top-half Premier League team.
Manchester United, on the other hand, have struggled to find their feet. They have appointed a new manager, Erik ten Hag, but they are still a long way from challenging for the Premier League title.
The match between Brighton and Manchester United was a turning point in the history of both clubs. It was a night that showed that Brighton were on the up and that Manchester United were on the decline.
Only time will tell whether Brighton can continue to climb the table and whether Manchester United can rediscover their former glory.
But one thing is for sure: the match between these two teams will always be remembered as a night of contrasting fortunes.