Chelsea boss Luiz Felipe Scolari admits the busy Christmas schedule could make or break their Premiership title hopes.
Scolari said: "I have never had to think about matches at Christmas. We have to work like a normal day - but every day is a party for us at Chelsea!
"Playing on December 26 and 28 is difficult for me but it is normal for the players.
"In South America, if you say we will play on the 26th, they will kill you!
"But here maybe the wife tells her husband 'Go to the football - I want to be alone!'
"Over this period some teams grow up - but others lose ground. I want to arrive at the end of December in good condition."