Auxerre gave their Ligue 1 survival hopes a huge lift with a superb four-goal demolition of fellow relegation battlers Brest.
All the goals came in the first half, with Edouard Cisse, Olivier Kapo, Alain Traore and Roy Contout all on target to hand Auxerre their first win in four.
The hammering marked a nightmare start for interim Brest coach Corentin Martins, who was promoted from his position as the club's director of sport on Thursday following the sacking of coach Alex Dupont.
Auxerre remain bottom but are now three points from safety, while third-bottom Brest remain just a point behind 17th-placed Ajaccio.
The hosts made a flying start to the match and went ahead on four minutes when Traore's mis-kick from a corner fell to Cisse, who slotted the ball home.
The second goal arrived on 15 minutes after Contout sent over an inviting ball from the right wing and Kapo was on hand to lash home a fierce volley.
Two became three on 23 minutes as Traore played a one-two with Contout before continuing his run into the area and curling in a smart finish beyond Steeve Elana.
Contout had been hugely impressive throughout the first half and was rewarded for his industry with a goal of his own six minutes before the break when he was in the right place at the right time to tuck the ball away after Traore's powerful free-kick had come back of the crossbar.
Brest finally came to life in the second half with Bruno Grougi going close from two free-kicks and Eden Ben Basat skimming an upright with an effort with 15 minutes remaining, but Auxerre were always in control and comfortably saw out the remainder of the match.