The 22-year-old, who joined Chelsea from Nice in 2020, fitted into the back three seamlessly alongside Trevoh Chalobah and Andreas Christensen and helped the Blues to a 1-0 win that keeps them top of the Premier League.
Sarr was delighted to make his Premier League and has revealed Thomas Tuchel only told him he was starting on the day of the game.
“When the coach gave out the team at the meeting before lunch,” he said. “I was really happy but I was ready because I wanted it so much and I am working every day for that. I was grateful and happy to be in the starting XI.
“It was really good. I enjoyed it. It was a tough game but everything went like we wanted it to because we got the three points. It was tough at the end but we did everything to keep the clean sheet and we are really happy.
“The intensity, the toughness, lots of fighting, lots of challenges, it was the game I was expecting. Trying to keep my composure, that has been my game since I was a kid and I hope I helped the team.”
Sarr has explained how Chalobah and Christensen made it easier for him to fit in to the team.
“These two are really smart so was really easy for me to adapt to them and talk to them,” he said.
“They are team players and when you have team players it is easy to fit in with them.”