Dismal day for US in Chennai
Switzerland's Stanislas Wawrinka, seeded third, saw off American Michael Russell 6-3, 6-4 while
fifth seed Dudi Sela needed a tie-break to claim the opening set against another American, Kevin Kim, after the pair wasted three break points apiece.
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Hide AdHe comfortably took that decider 7-3 before two breaks in a one-sided second set earned him a 7-6 (7-3) 6-2 win.
Germany's Michael Berrer was pushed even harder in his opening set against Frenchman Stephane Robert, winning it 8-6 in a tie-break.
But the seventh seed also broke twice to claim the second set and complete a 7-6 (8-6) 6-3 win in an hour and 40 minutes. Slovakian Lucas Lacko was the day's other winner, sinking Robby Ginepri 7-6 (7-3) 6-4 to complete a dismal day for the United States.