Barcola curled in a fine finish on the half hour and Lee Kang-in doubled the advantage on 58 minutes with a diving header after the France forward's rasping effort clattered the post.

Achraf Hakimi then set up Barcola for a simple tap-in as he overtook Marseille striker Mason Greenwood as the league's leading scorer this term with six goals.

Former PSG youngster Arnaud Kalimuendo reduced the deficit with a penalty 15 minutes from time following a handball by Lucas Beraldo, with a late Alidu Seidu goal for Rennes ruled out for the same reason.

Luis Enrique's side can be caught back up by Monaco and Marseille this weekend. Monaco play Montpellier on Saturday before Marseille visit Strasbourg on Sunday.

Brest suffered a fourth defeat in six games after losing 3-0 at promoted Auxerre ahead of their trip to Salzburg in the Champions League next week.