EuroCup sides Nancy and Gravelines-Dunkerque both won in French domestic action on Tuesday night.
Nancy gained a measure of revenge for last year's defeat to Strasbourg in the play-off championship final by prevailing 74-60 while Gravelines snatched a late 75-71 win over Le Mans.
Nancy trailed 38-36 at half-time but fought back to win with Ryan Hoover and Tariq Kirksay each scoring 16 points in the triumph.
Marques Green, who played for Olympiacos in Greece last campaign, weighed in with 14.
Jean-Luc Monschau, the Nancy coach, praised his side's battling spirit.
"It was a big fight just getting time to shoot, and getting the ball away from them," Monschau said in local newspaper, Les Dernieres Nouvelles d'Alsace.
"But despite mistakes at the start of the game, we responded well to the challenge."
Strasbourg have now suffered two defeats this season, and their Czech center Ondrej Starosta said: "We performed well in the first half and then we relaxed our efforts, especially in attack.
"We played too much as individuals in the second half."
Gravelines, who handed Strasbourg their first setback of the season, eased their way past Le Mans with Rahshon Turner pouring in a game-high 24 points and Thomas Dubiez 20.
Dubiez was six of nine from three-point range. Tyson Wheeler also had 19 points for Gravelines.
The rest of the third-round action in the French top flight will be played on Wednesday night.