Anastasija Sevastova ousted Stosur 2-6, 7-6 (7-5), 7-5 turning the match around from a first set dominated by Stosur.
Stosur won more points overall (104-100) in the match, but that was because she swept through the first set in losing only 21points. Sevastova began to solve Stosur's serve and forced 10 break-point situations, winning three of them, including two in the third set.
Roberta Vinci didn't face a break point in the third set of her 6-3, 2-6, 6-3 upset of 10th-seeded Svetlana Kuznetsova; Gisela Dulko used two third-set breaks in defeating No. 14-seeded Aravane Rezai 6-4, 2-6, 6-4; and Kaia Kanepi capped a 13-match schedule with a 7-5, 6-1 win over No. 16-seeded Anastasia Pavlyuchenkova.
Local favorite Na Li, the No. 9 seed, routed Alla Kudryavtseva 6-2, 6-0; 12th-seeded Maria Sharapova topped Tsvetana Pironkova 6-4, 7-6 (7-5); and No. 13-seeded Nadia Petrova blitzed Xinyun Han 6-2, 6-2 in advancing to the second round.
Other first-round winners Sunday were: Petra Kvitova, Bojana Jovanovski, Alisa Kleybanova, Dominka Cibulkova, Polona Hercog and Maria Kirilenko.
Copyright 2010 United Press International, Inc. (UPI).