Chelsea lost John Terry with a suspected fractured cheekbone as Avram Grant's first home game in charge ended in a 0-0 draw with Fulham.
The goalless draw saw Chelsea take their unbeaten home league run to 67 games but it was their fourth successive Premier League game without scoring.
To compound matters for Chelsea, Didier Drogba, playing his first game since injuring his knee against Aston Villa in early September, was sent off for a second bookable offence in the 73rd minute.
England captain Terry would miss up to six weeks if the injury is confirmed as a broken cheekbone, meaning he would miss the Euro 2008 qualifiers against Estonia and Russia.
As for the game, Fulham squandered too late chances to win it when Paul Konchesky's effort was saved by Petr Cech and then Diomansy Kamara fired wide when clean through on goal.