Il giorno del proprio 32o compleanno Stan Wawrinka (ATP 3) ha patito la seconda sconfitta in altrettante sfide disputate contro Alexander Zverev (20). Il tedesco si è imposto per 4-6 6-2 6-1 al termine di una partita durata 1h45', impedendo così al vodese di accedere per la prima volta in carriera ai quarti di finale del Masters 1000 di Miami, traguardo fallito per la nona volta.
Stan ha dominato il primo set, offrendo un gioco solido e convincente, ma ha perso il filo del discorso nel secondo. La testa di serie numero uno del torneo, che contro il 19enne germanico aveva perso la finale di San Pietroburgo dello scorso anno, ha subito concesso la battuta, lasciandosi scappare l'avversario già in entrata di frazione. Il talento di Amburgo ha poi allungato fino sul 5-1 prima di pareggiare i conti. Nel set decisivo la storia si è ripetuta, con l'elvetico incapace di andare oltre il 15 nei primi 4 game. L'1-4 è stato l'unico gioco conquistato nel finale di una partita da mettere al più presto nel dimenticatoio.
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