US OPENSerena vence a María Sakkari y ya está en cuartosLa tenista estadounidense se impuso a María Sakkari y ya está en cuartos de final del US Open. Su rival será la tenista bulgara Tsvetana Pironkova.AStvActualizado a 8 de septiembre de 2020 08:39 COTNEW YORK, NEW YORK - SEPTEMBER 07: Serena Williams of the United States is seen after defeating Maria Sakkari of Greece during their Women's Singles fourth round match on Day Eight of the 2020 US Open at the USTA Billie Jean King National Tennis Center on September 7, 2020 in the Queens borough of New York City. Al Bello/Getty Images/AFP == FOR NEWSPAPERS, INTERNET, TELCOS & TELEVISION USE ONLY ==AL BELLOAFPEtiquetado en:Serena WilliamsUS OpenGrand SlamTenisCompeticionesDeportes