Chelsea defender Gary Cahill admits their current form slump is a "sticky situation".

Chelsea have now gone five matches without a win and it is hard to see them turning the tie around unless they can stop the rot before the second leg in two weeks' time.

Cahill said: "It's a sticky situation at the minute. I have come in right in the middle of it.

"As soon as we get results, I think it will turn the corner, but it's difficult times."