Marseille's seven-game unbeaten run in Ligue 1 came to an end as Amiens climbed to 11th place in the table following a 3-1 win at the Stade de la Licorne.
Luka Elsner's Amiens team got off to a fine start as, in the 11th minute, Gael Kakuta set up Haitam Aleesami for the defender's first goal for the Unicorns.
Dario Benedetto levelled with a cool finish after dribbling to the edge of the box in the 23rd minute but, not long before half-time, Amiens reclaimed their lead.
After Duje Caleta-Car fouled Serhou Guirassy in the box, the former Cologne player dusted himself down and converted the resulting penalty.
Marseille pushed hard for an equaliser throughout the second half – Saif-Eddine Khaoui and Hiroki Sakai went particularly close – but Amiens rubber-stamped the win with a stoppage-time strike from Colombian striker Stiven Mendoza.
It was a first ever top-flight victory over Marseille for the northern outfit.
