Pep Guardiola identified the scrappy 1-0 win at Southampton as the turning point in Manchester City's title-winning season.
City were inconsistent in the opening months of the campaign, falling to 14th in the Premier League at one point, and as a record number of sides topped the table at one stage or another, it looked like City would struggle to challenge for the title.
However, after dropping points against Manchester United and West Brom, City travelled to the south coast and produced a professional display to take a much-needed three points home from St Mary's.
They didn't know it then, but City wouldn't drop another point for 21 games, with a 15 game winning-streak in the league taking them from well behind the leaders to well infront.
"Every day, the league is every day," Guardiola said when asked about his side's mindset in such a gruelling season.
"In cups and knockout anything can happen but the league is every day. We did it incredible. Everything started that night in December when we won in Southampton until 7th of March when we lost to United.
"That period, 19th December to 7th March we won absolutely everything of the games and that made the Premier League possible.
"I feel relief, incredible, happy for many people. It's a massive achievement for the massive contenders and opponents we had in this league in difficult lockdown. Everyone knows. We're incredibly satisfied.
"It's not just the players, everyone. The focus is the manager in the press conference and the players on the pitch but there are thousands of people working behind the scenes that made this possible.
"The Premier League is so nice, to win this title is always the most important thing because every three days for ten months you're fighting for the big teams against teams who might not fight for the league but it's so complicated to beat them. And we were there."
Guardiola also reflected on City's dominance in recent years overall, with five titles in ten seasons.
"The achievement, it's this decade," he explained, saying this league is the toughest in Europe to win.
"In ten years, City won five times. Everything this club has done in the last ten years since Sheikh Mansour took over the club and Khaldoon the chairman leading the people. We did it. Big compliment for everyone.
"We are part of City in this ten years, many players and managers to create this. It's part of that. Five Premier Leagues. I've been in Spain and in Germany and I can say this is the toughest one, the toughest league. By far.
"For many reasons, so to achieve five leagues in ten years means a lot for this organisation. From the most important guys the less recognised guy externally, a big compliment."
And with 10,000 City fans expected back at the Etihad for the final game of the season to see the Blues lift the trophy, Guardiola had a message for the supporters.
He said: "I am looking forward to Everton game. We will lift the trophy and 10,000 are coming. In the Carabao Cup just a few people were there and it was so different."
