Marseille and Paris St Germain are preparing for the first 'Classique' of the Ligue 1 season on Sunday off the back of hugely contrasting fortunes in the Champions League in midweek.
Reigning French champions PSG head to the Stade Velodrome buoyed a superb 3-0 win over Benfica, but Elie Baup's hosts are bidding to recover from a defeat by the same scoreline against last season's Champions League runners-up Borussia Dortmund.
Marseille have now lost both of their Champions League Group F outings so far, a record in stark contrast to PSG's back-to-back wins in Group C, but there is little to choose between the two great rivals in the Ligue 1 standings.
PSG are level on 18 points with leaders Monaco, while Marseille are a point further back in third.
Baup was adamant the size of the Dortmund loss on Tuesday night was not a fair indication of the difference between the sides, adding that the result would ``not leave scars''.
He said: ``We know the importance of the game to come.
``We have to put the Champions League to one side, and get back into the league. We're on a good quality run, like Paris.''
Unbeaten PSG have looked every inch a major European force so far - scoring seven goals and conceding just one in their two group matches - with midfielder Blaise Matuidi describing their Benfica win ``undoubtedly our best performance of the season''.
While OM's task on Sunday is a stern one they at least have the comfort of welcoming back striker Andre-Pierre Gignac from a toe injury.
Gignac found the net in each of three meetings with PSG across all competitions last season, and should feature after playing a full part in training on Wednesday.
Baup will also welcome back defender Jeremy Morel following his recovery from a knee injury.