Antonio Conte has warned Chelsea that they cannot afford to let their standards slip during a vital few weeks in the title race.
The Blues have won nine Premier League matches in a row, with Sunday’s 1-0 victory against West Brom taking them back to the top of the table, three points clear of second-placed Arsenal.
Their busy December continues with an away match against Sunderland on Wednesday.
And boss Conte said: “It is important to be focused because this is a very important period.
“The Christmas period is very difficult for all teams and it’s important to be focused and to play football with a good intensity.
“We have played only 15 games and we must continue in this way, with the players showing real commitment.”