The Londoners were held to a goalless draw by Sunderland. Jose Mourinho's men are still on top of the table after 13 round of matches.
At the Saint Mary's stadium, Southampton were beaten 3-0 by Manchester City. The defending champions played a larger part of the second half with just 10 men after Mangala was sent off.
The one man shortage couldn't prevent Manuel Pellegrini's from grabbing the vital points that took them to the second spot on the EPL log standings.
In other games, Manchester United crushed Hull City by 3-0 at the Old Trafford stadium while Liverpool laboured to overcome Stoke City by a Glen Johnson's goal.
The Englishman nodded in the ball after a rebound that followed Rickie Lambert's effort.
Arsenal moved into the top 5 with a 1-0 away win against West Bromwich Albion. Danny Welbeck's header was enough to see off a resolute West Brom team at The Hawthorns.
Roberto Soldado scored his first league goal in 8 months as Tottenham Hotspur defeated Everton by 2-1 at the White Hart Lane.
Newcastle United suffered an uncommon defeat in the hands of West Ham United at the Upton Park. The Magpies had won about four games in a row before that 1-0 reverse.
At the Liberty stadium, Swansea City settled for a 1-1 draw at home to Crystal Palace.
Burnley and Aston Villa also played a one all draw.
Week 14 matches takes place on December 2nd/3rd.
Leicester City will host Liverpool while Manchester United will host Stoke City.
The Anfield giants will be without Balotelli,Suso and Flanagan due to injury,while Sakho won't be fit to start the match.