Fourth division Romorantin and second division Ajaccio provided the biggest upsets in the French Cup round of 64 by knocking out Ligue 1 sides Nancy and Auxerre respectively on Saturday. Romorantin held visitors Nancy to a goalless draw after extra time and won a shootout 4-2. Benoit Pedretti put home side Auxerre in front after 26 minutes but Ajaccio equalised nine minutes later through Cedric Uras and the game remained evenly balanced at 1-1 until the end of extra time. The Corsican club then won 3-1 on penalties. Strugglers St Etienne put their league worries aside to knock Girondins Bordeaux out thanks to a late Bafetimbi Gomis goal in one of the day's four all-Ligue 1 clashes. France striker Gomis struck with a low angled shot from inside the box against the run of play after 74 minutes to seal a 1-0 victory for once-great St Etienne, who are fourth from bottom in the league standings. MORALE BOOST "This is just the morale boost we needed," Gomis told reporters. "We badly wanted to make amends for our poor league showings and we did that. We showed we had character." Bordeaux, second to Olympique Lyon in Ligue 1, had dominated play before their home fans but wasted many chances and failed to survive the first round involving top-flight clubs. Stade Rennes went through by winning 1-0 at Sochaux thanks to a first-half goal by Moussa Sow. Nantes twice fought back from a goal down at home against Caen to make it 2-2 after extra time but the visitors won 5-3 on penalties. Toulouse also advanced by knocking out Ligue 1 rivals Valenciennes 5-4 on penalties after a goalless tie. A major upset came from the Alsatian village of Schirrhein. The smallest club left in the draw, playing in the seventh division, recovered from two goals down to knock out second division Clermont 4-2 with four goals in the last 25 minutes. Holders Lyon's tie at amateurs Concarneau was postponed because of a frozen pitch. The game was due to kick off at 2000 GMT at Guingamp, a town near Concarneau in Brittany. No new date has been set yet. Paris St Germain and fellow French Cup specialists Olympique Marseille visit amateur sides in Montlucon and Besancon respectively on the final day of last 64 action on Sunday.