Summary Monica Puig upset Andrea Petkovic in first-round of the WTA Guangzhou International Women's Open.
GUANGZHOU (AFP) - Puerto Rico s Monica Puig upset number two seed Andrea Petkovic of Germany in first-round play Tuesday in the WTA Guangzhou International Women s Open.
The unseeded Puig defeated Petkovic 6-1, 6-4 in the biggest upset of the day in the southern Chinese city.
Players are battling for prize money of $250,000.
There were no surprises for top-seeded Simona Halep of Romania, who beat Petra Martic of Croatia 6-4, 6-2.
Halep, ranked number two in the world, was defeated in the semifinals of the US Open this month by eventual champion Flavia Pennetta of Italy.
In the day s other upset, Bojana Jovanovski of Serbia defeated number seven seed Danka Kovinic of Montenegro 6-4, 6-2.
Number three seed Sara Errani of Italy, meanwhile, was pushed to three sets before defeating China s Duan Ying-Ying 6-3, 3-6, 6-2.
Fourth seed Jelena Jankovic of Serbia beat Russia s Elena Vesnina 7-6 (7/3), 6-3, taking the first set with a tiebreaker.
Svetlana Kuznetsova of Russia, seeded fifth, defeated Slovakia s Daniela Hantuchova 6-4, 7-5
Sixth seed Monica Niculescu of Romania beat Kazakhstan s Yulia Putintseva 7-6 (7/5), 1-6, 6-3, needing a tiebreaker to win the first set.
And China s top player Zheng Saisai, seeded eighth in the tournament, downed Aleksandra Krunic of Serbia 6-2, 6-1.
