PSG and Marseille form part of one of the most iconic rivalries in French football.
Nicknamed Le Classique, both these teams have been fighting it out for titles in France for a long time.
It's not a surprise that these are the only two French clubs who have won major European trophies, with PSG winning the 1996 Uefa Cup Winners' Cup and Marseille winning the 1992-93 Champions League.
Despite their fiery rivalry, over the years many players have switched allegiances between both clubs.
Who are they? Let's take a look!