PARIS, Jan 21 (Reuters) - Brazilian Lucas Pereira struck twice to hand bottom of the table Ajaccio a 3-1 upset victory over Olympique Marseille in Ligue 1 on Saturday.
It was the struggling Corsican side's first league win since they beat Nancy 1-0 on Sept. 10.
Ajaccio, who have 16 points from 23 games, moved up two places to 18th in the 20-team table while Marseille remained sixth after suffering their second defeat in four matches.
The hosts went in front when number nine Pereira converted a fine pass from compatriot Andre Luiz in the 11th minute.
Marseille levelled through new recruit Mickael Pagis in the dying seconds of the first half but Pereira put Ajaccio back in the driving seat when he netted from close range 11 minutes after the restart.
Senegal's Moussa N'Diaye completed the rout when he headed in a cross with a minute to go.
"We had a pretty poor match tonight," said Marseille coach Jean Fernandez.
"We conceded three goals to the worst side in the league. We can't have great ambitions."
Ajaccio coach Jose Pasqualeti said: "I'm really proud with what the guys did tonight. We needed to end a four-month victory drought.
"There are still 15 games to go and we can still hope to avoid relegation. This is a first step but an important one.
"Beating a side like Marseille is a mental boost but we must now carry that on."