The keeper had an excellent afternoon, making a string of decent saves in a game in which the fans' behaviour was under as much media scrutiny as the players.
Boss Rafa Benitez hit out at his title of 'interim manager' and criticised the supporters for using their energies to insult him, rather than support the team, in midweek.
And although there were messages for him on banners, chants for his predecessors Roberto Di Matteo and Jose Mourinho, and vitriol hurled in the Spaniard's direction - there was plenty of encouragement for the players too.
"I'm so focused on the game that I hardly understand what the people sing or shout or what they do," Cech told Chelsea TV.
"The main point is the people were here, the stadium was full, they were behind us, they supported the team and we won the game.
"We had a good performance and everyone seemed to leave the stadium happy."
Cech made strong saves from long-range shots by Steven Reid and Peter Odemwingie, but his most instinctive block came when a corner deflected goalwards off Chelsea right-back Cesar Azpilicueta.
Cech added: "Their chances came at the end because they threw everything at us and we hadn't killed them off. This was the story of the season a little bit. We had so many chances and Ben Foster had a great game.
"They survived until the 80th minute and then they waited patiently for their chances up front, they had to.
"But overall our performance was very good. Everybody was focused, everybody was concentrated until the last whistle."