Coach Kobi Kuhn kept Manchester City midfielder Gelson Fernandes in his squad.
But Kuhn was forced to do without three players because of injuries sustained during the co-hosts' pre-tournament training camp.
Hertha Berlin defender Steve von Bergen, 24, missed out after breaking a bone in his right hand.
Goalkeeper Fabio Coltorti was sent home with post-viral fatigue and replaced by the uncapped Eldin Jakupovic, and striker Blaise Kufo was ruled out having been diagnosed with a torn groin muscle.
Switzerland, who beat Slovakia 2-0 on Saturday, play Liechenstein in their final warm-up match on Friday.
SWITZERLAND SQUAD
Goalkeepers:
Diego Benaglio (Wolfsburg), Eldin Jakupovic (Grasshoppers), Pascal Zuberbuehler (Xamax Neuchatel)
Defenders:
Philipp Degen (Borussia Dortmund), Johan Djourou (Arsenal), Stephane Grichting (Auxerre), Stephan Lichtsteiner (Lille), Ludovic Magnin (Stuttgart), Patrick Mueller (Lyon), Philippe Senderos (Arsenal), Christoph Spycher (Eintracht Frankfurt)
Midfielders:
Tranquillo Barnetta (Bayer Leverkusen), Valon Behrami (Lazio), Ricardo Cabanas (Grasshoppers), Gelson Fernandes (Manchester City), Daniel Gygax (FC Metz), Benjamin Huggel (Basel), Gokhan Inler (Udinese), Johan Vonlanthen (Red Bull Salzburg)
Strikers:
Eren Derdiyok (Basel), Alexander Frei (Borussia Dortmund), Marco Streller (Basel), Hakan Yakin (Young Boys)