David de Gea believes the busy fixture offers the perfect chance for his team to put pressure on Chelsea.
Jose Mourinho does not want to give title rivals Manchester City any reason to cheer over the festive season.
David Silva eased an increasingly tense atmosphere at the Etihad Stadium when he broke the deadlock.
Chelsea maintained their position at the top while Man City are 6 points behind in second place.
Leo Messi is now the all-time top scorer in Uefa Champions League history with 74 goals.
Champions Manchester City stayed in touch at the top when they came from behind to beat Swansea.