Heather Watson & Laura Robson beaten at US events
Heather Watson suffered a first round defeat by Yanina Wickmayer at the Texas Open as she returned to action after the Olympics.
The 20-year-old Briton, ranked 70 in the world, was beaten 6-3 6-4 by the Belgian world number 30 at Grapevine.
Meanwhile, Laura Robson, 18, lost 6-3 6-3 to French fifth seed Marion Bartoli at the New Haven Open.
Both Watson and Robson will now head to New York for the US Open, which starts on 27 August.