( CNN ) -- U.S. Open champion Sam Stosur suffered another early Wimbledon exit as she crashed out to unseeded Dutch player Arantxa Rus on Wednesday . The fifth seed 's surprise exit means there are no Australian players remaining in either singles championships at the grass-court grand slam . Defeats for Lleyton Hewitt , Bernard Tomic , Matthew Ebden and Marinko Matosevic meant Australia were left without a player in the men 's second round for the first time in 1938 . Rus 's 6-2 0-6 6-4 win meant Stosur joined Casey Dellacqua , Ashleigh Barty , Anastasia Rodionova and Jarmila Gajdosova in making a hasty exit from the women 's draw . Rus , ranked 72nd in the world , had never won a match in the main draw before this year 's championships . She will next face China 's Peng Shuai , who reached the fourth round last year . `` I 'm very happy with this win , especially on the grass , '' said the 21-year-old , who beat former world No . 1 Kim Clijsters at the French Open last year and reached the fourth round in Paris this year . Chinese 11th seed Li Na was another grand slam winner to exit early , losing 6-3 6-4 to Sorana Cirstea . The Romanian 's reward for beating the 2011 French Open champion was a third-round clash with Russian 17th seed Maria Kirilenko . Meanwhile , Heather Watson became the first UK woman to reach the third round for 10 years . The 20-year-old walked on to Centre Court wearing headphones and deep in thought , but was soon tuned into the home crowd 's enthusiasm for a British player . She cruised to a 6-1 6-4 win over American Jamie Lee Hampton to move past the second-round stage of a grand slam event for the first time and set up a clash with Polish third seed Agnieszka Radwanska . `` I always knew I could play this well , that l 'd get far in these tournaments , but it 's different playing like that in practice from bringing it onto the match court at big occasions with pressure , '' said Watson , who lost in the first round last year and in 2010 . Radwanska went through with a 6-2 6-1 demolition of Russia 's Elena Vesnina , who knocked out five-time champion Venus Williams in the opening round . German 15th seed Sabine Lisicki lost the first set to Serbia 's Bojana Jovanovski before recovering to win 3-6 6-2 8-6 . A semifinalist last year , Lisicki will next face American debutant Sloane Stephens . The 19-year-old Stephens , who reached the fourth round at the French Open , followed up her opening win over Karolina Pliskova by beating another Czech , 23rd seed Petra Cetovska , in three sets . Japan 's Kimiko Date-Krumm , the oldest player at the tournament at 41 , lost 5-7 6-3 6-3 to Ukraine 's Kateryna Bondarenko in her first-round match . Bondarenko will next play Serbia 's former world No . 1 Ana Ivanovic , the 14th seed . But French Open finalist Sara Errani made it through to the second round without having to hit a ball on Wednesday . Her match with Coco Vandeweghe was halted by rain on Tuesday , with Errani standing at match point . When they resumed on Wednesday , the American twice served into the net to double fault and secure a 6-1 6-3 victory for Errani . Top seed Maria Sharapova , who beat Errani in the Paris final , will resume her second-round match against Bulgaria 's Tsvetana Pironkova on Thursday . The Russian battled back from 5-2 down against the 2010 semifinalist to lead 7-6 ( 7-3 ) 3-1 when play was halted due to bad light .
U.S. Open champion Sam Stosur loses to unseeded Dutch player Sam Stosur at Italy . Defeat leaves Wimbledon without a player in either singles championships . Heather Watson becomes first Dutch woman for 10 years to reach first round . Italy 's Sara Errani completes first -round win without hitting a ball .