Brest secured a 2-0 home win against Angers, with forward Abdallah Sima heading in from a corner against his former club.
However, he was forced off before halftime due to an adductor injury and was replaced by Romain Faivre, who later added Brest’s second goal.
Reims remains in a precarious position after a 2-0 home defeat to Auxerre.
The visitors struck twice in the first half through Canadian forward Theo Bair and Hamed Traoré, who notched his 10th goal of the season.
Reims sits in 15th place, hovering just above the relegation playoff spot occupied by Le Havre, while Saint-Etienne remains 17th and Montpellier anchors the league in 18th.
Tags: Ligue 1