It ended a woeful few days for reigning champions Croatia. They left with two losses.
Mike Bryan says is ready to shut down one of the best doubles partnerships ever if twin brother Bob fails to recover from the hip injury that forced him to miss the French Open.
Making a stupendous start to the fresh season, Ramkumar Ramanathan scalped higher-ranked Roberto Carballes Baena to set up a second round clash with tournament-favourite Marin Cilic at the inaugural Tata Open Maharashtra, in Pune.
World number one Simona Halep swatted aside American Nicole Gibbs while Maria Sharapova was flawless in her straight sets victory over Romania's Mihaela Buzarnescu in the opening round of the Shenzhen Open on Monday.