Swiss Tennis on Twitter: "A warm welcome & good luck to all participants of the 15th Biel-Bienne Indoors! All info on wheelchairtennis.ch https://t.co/f5TeCKoQi1" / Twitter
Swiss Tennis - die Drehscheibe und das Kompetenzzentrum im Schweizer Tennis
Swiss Tennis Academy | Biel/Bienne
Swiss Tennis Center - Schöne, neue Tenniswelt in Biel - News - SRF