A brace from Thomas Vauvy helped Granville beat Sarreguemines 3-1 to seal a last-16 place in the Coupe de France on Saturday.
Vauvy scored either side of El Hassane M'Barki's goal, with Florian Jegu's injury-time strike settling any late nerves for Granville.
They will now meet Bourg en Bresse in the next round.
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