He scored a 90th-minute penalty to earn a 2-2 draw for Monaco.
Dier reflected on the match, stating that Monaco knew it would be a challenging encounter against a well-organized and skilled Manchester City team.
He praised Monaco's ability to manage the ball effectively, creating several scoring opportunities, despite knowing they would likely lose possession and struggle.
The team's defensive play and the contributions of Philipp Kohn allowed them to move up their block and create chances, while also defending well together and working hard.
Dier acknowledged that a draw against Manchester City was not a great result, but felt it was a good one, given the team's performance.
He noted that Monaco managed to limit Manchester City's chances, despite the opposition hitting the bar twice, and created opportunities to equalize when they had the ball.
Dier also commented on his experience playing against Erling Haaland, describing him as one of the best strikers in the world.
He noted that Haaland's effectivness comes from his ability to appear uninvolved in the game, only to become a threat at any moment.