Chelsea's bid to retain their place at the top of the Premier League kicks off a full Boxing Day programme across England's top four divisions.
The Blues, who have a three-point lead over Manchester City, host fourth-placed West Ham United at 12:45 GMT.
It will be Chelsea's second match in a busy sequence of four games in 11 days.
"It doesn't matter - English or not English - the moment you are a football player in this country, I respect you a lot," said Chelsea boss Jose Mourinho.
"At this moment the German guys are on the beach, the Spanish guys are in the Maldives getting sun - everybody else is doing that.
"But in this country you play on the 22nd, you play on Boxing Day, you play on the 28th, you play on New Year's Day. There is no Christmas - just football, and I think the players deserve respect.
"The supporters all around the country give them that respect because every stadium is sold out. And I think the way to do it is with the kind of professionalism my players have shown."