Paris - Casting a long shadow over Paris Saint-Germain's Ligue 1 date with modest Caen this weekend is the imminent visit to the Parc des Princes of cross-channel giants Chelsea.
PSG square up to Jose Mourinho's runaway Premier League leaders in the Champions League last 16 first leg on Tuesday with Laurent Blanc's side itching for revenge.
Last season Chelsea blocked PSG's passage to the Champions League semi-finals on away goals.