Drogba injury adds to Blues' striker woes

The Ivorian has been leading the line in Diego Costa's absence, after Chelsea's top scorer pulled up in the recent 2-1 win over Stoke City with a hamstring problem.

Loic Remy scored the winner in that game for the Premier League leaders, but he too has missed the last two matches with a calf injury.

However, Drogba tweeted to say he had been forced to pull out because of an ankle problem, which could give Jose Mourinho a serious selection headache ahead of Sunday's meeting of first v second in the league at the Emirates Stadium.