TENNIS

U.S. Open

The defending U.S. Women champion Sloane Stephens is out of the contest as 26-year old latvian avenges last years' quarter-final loss while serena williams, Rafael Nadal, Del Potro are through to the semis after quarterfinal victories at the flushing meadows in New York.
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Spain's Rafael Nadal survived Austria's Dominic Theim's test after 0-6, 6-4, 7-5, 6-7, 7-6 victory to reach the U.S. Open semi-finals
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Argentine Juan Martin Del Potro ended john isner's dreams of grand slam glory in his homeland, with a 6-7, 6-3, 7-6, 6-2 quarterfinal win at flushing meadows.
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Serena Williams fought back from a break down in the first set to beat Czech eighth seed Karolina Pliskova 6-4, 6-3, and reach the semi-finals in suffocating conditions.
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Defending U.S. Open champion Sloane Stephens was dumped out in the quarter-finals after losing 6-2, 6-3, to latvian 19th seed Anastasija Sevastova in sweltering conditions.

Sevastova becomes the first latvian woman to reach the semi-finals of the U.S. Open.

The 28-year-old Sevastova, who avenged last year's quarter-final loss to stephens will meet Serena williams in the semifinal.