Belinda Bencic (WTA 15) ha iniziato con il piede giusto il torneo di Washington. Al primo turno la numero uno elvetica ha approfittato del ritiro della russa Anastasia Potapova (26), costretta ad alzare bandiera bianca durante il primo set sul punteggio di 6-5, per accedere agli ottavi di finale. Per la sangallese si è trattato di un primo (breve) ritorno sui campi da tennis, dopo che era stata costretta a dare forfait ai tornei di Losanna e Nizza per un problema al braccio destro rimediato a Wimbledon.
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