Chelsea will be without striker Didier Drogba for this weekend's match with Arsenal and could be without the Ivory Coast international for Tuesday's Champions League showdown with Barcelona.

Drogba has been in good form in recent weeks with a goal against Tottenham in last weekend's FA Cup semifinal as well as the only tally in the 1-0 win over Barca on Wednesday.

But a knee injury will keep him from taking part in the crucial match against the Gunners on Saturday and has cast doubt about his availability for Tuesday's contest in Spain.

Drogba has tallied five goals in 22 league appearances this season for Chelsea, which sits two points back of fourth-place Tottenham for the fourth and final Champions League place.