But when JavierPastore shook the very foundations of one of Europe's greatest bastions, a cloud began to descend upon manager Tito Vilanova and his ailing players.
The visitors' winning goal came in the 50th minute from Argentine JavierPastore and allows PSG to wrap up the title on Sunday if they record a better result against Valenciennes than second-placed Marseille manage in Saturday's match with Bastia.