Paris Saint-Germain must take their Ligue 1 form into the Champions League to avoid more 'suffering' at the hands of their 'superior' rivals, says Angel Di Maria.
The Argentine forward, who signed a new five-year deal with the French champions this week, knows they face an uphill fight after slipping to third behind Liverpool and Napoli in Group C after three games.
PSG have already lost at Anfield and drawn at home with Napoli and face another trick away tie in Naples next week.
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They have a 100% record in their domestic league and Di Maria, 30, said: "In Ligue 1 things are going very well, but in the Champions League we knew it would be difficult.