Chelsea increased the gap between themselves and fifth-placed Arsenal to five points as N'Golo Kante's second-half strike earned them victory at Crystal Palace.
Kante scored the only goal of the game in the 51st minute when he broke forward from midfield to convert David Luiz's through-ball.
There were few clear-cut chances as the Blues dominated possession and Palace sat back hoping to catch the opposition on the counter-attack - a tactic which failed to work as Roy Hodgson's Eagles took 85 minutes to register their first effort. That is now two successive games without a goal.
Chelsea's Willian came close to scoring with a free-kick that struck the post, and Ross Barkley also hit the woodwork with a hooked effort.
Fourth-placed Blues now have 43 points, one behind City and two behind Spurs. Palace remain in 14th with 19 points.