A flurry of late goals saw Saint-Etienne draw 3-3 with Tours before eventually winning 5-3 after extra time in the Coup de France.
The home side took a surprise lead early on when Sall put through his own net after 11 minutes before Kevin Monnet-Pacquet levelled after the hour mark.
Youssouf Adnane netted for the home side after a quick-fire Ricky van Wolfswinkel double had made it 3-1.
Bergounoux struck to take the game to extra time but the Ligue 1 side scored twice in extra time when Monnet-Pacquet grabbed his second after Erdinc had made it 4-3.
