BURNLEY trail to a Didier Drogba goal in their Carling Cup fourth-round tie at Chelsea.

Drogba beat Michael Duff before firing past Brian Jensen in the 27th minute.

Branislav Ivanovic hit the bar before half time, although Martin Paterson had a shout for a penalty turned down at the other end.

Frank Lampard came off the bench to replace the injured Juliano Belletti for Chelsea after 25 minutes.