Heather Watson's latest defeat was compounded by the news that she has fallen outside the women's top 100.
Number three seed Ana Ivanovic made a winning start to her Linz Open campaign with a 6-2 6-4 victory over Yanina Wickmayer.
Maria Kirilenko got some revenge at the U.S.
Round-up: The Maria Sharapova-Jimmy Connors partnership got off to a rocky start as Sloane Stephens shocked the Russian.
Round-up: Venus Williams slumped to a 0-6 6-4 6-2 loss to Kirsten Flipkens in the Rogers Cup first round.
Round-up: Laura Robson withdrew from the WTA Toronto event, moments before she was to go on court to face Yanina Wickmayer.
Heather Watson needed three sets to beat Alexandra Mueller to move into the second round of WTA College Park in Washington.
Second seed Samantha Stosur was bounced out of the Stanford Classic in the second round by Olga Govortsova.
Marion Bartoli reached her second Wimbledon final with a 6-1 6-2 demolition of Kirsten Flipkens on Centre Court.
Round-up: Maria Sharapova beat Kristina Mladenovic 7-6(5) 6-3 to move into the second round at Wimbledon on Monday.
Fifth seed Caroline Wozniacki was dumped out of the Eastbourne semi-finals following a 7-6(8) 5-7 3-6 defeat to Jamie Hampton.
Caroline Wozniacki came from a set down to beat Ekaterina Makarova in the quarter-finals at Eastbourne but Li Na is out.
Laura Robson dropped out of the WTA Eastbourne event as she lost to fifth seed Caroline Wozniacki 6-4 6-4 in the second round
British number two Heather Watson made a winning start to WTA Eastbourne as she beat Varvara Lepchenko of the USA 6-3 6-4.
Laura Robson and Heather Watson crashed out of the Aegon Classic in Birmingham.
ATP World Tour Finals
View : 47229 times
View : 33049 times
View : 28966 times
View : 28580 times
View : 24258 times
Find detailed TV schedules – click here.
Find all the sports news on iPhone, BlackBerry, Android and iPad.
Download the latest Eurosport Australia TV schedules for your favourite sports FREE to your calendar. It's a simple three step process!