International midfield playmaker Gygax, 24, was in the Swiss squad at UEFA EURO 2004™ and joins the Ligue 1 runners-up from Swiss Cup winners FC Zürich, where he was a youth product. He has signed a three-year contract.
Under-21 international right-back Lichtsteiner leaves Zürich's local rivals, Grasshopper-Club. His deal runs until summer 2009 with Lille, who will enter next season's Champions League in the group stage.
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