Chelsea boss Jose Mourinho is backing Olympiakos to beat Arsenal in their Champions League playoff.

Insisting his usual preference is for English sides to progress, the Chelsea boss revealed he would be making an exception in Arsenal's case.

He said: "They (Arsenal) are in a group where a kid friend of mine, Marco Silva, is the manager of Olympiakos.

"It would be fantastic for the kid's career to go through, so I have to be honest and say that I would like the kid and Olympiakos to go on."