(Adds details, quotes)
By Julien Pretot
NEW YORK, Sept 2 (Reuters) - French Open champion Jelena Ostapenko was knocked out of the U.S. Open third round, losing 6-3 6-2 to Russian Daria Kasaktina after hitting a massive 38 unforced errors on Saturday.
The Latvian 12th seed, who broke into the limelight in June when she blasted her way to the Roland Garros title, got off to a fast start but the unseeded Kasaktina mixed her game with sliced backhands and chopped forehands to slow her opponent down.
The plan worked as after winning the first three games, Ostapenko grew frustrated and bowed out when she netted a backhand on the second match point at the end of a lung-busting rally.
Ostapenko complained of nausea and illness during the match.
“I was not feeling 100 per cent today, I was not feeling good already at the beginning of the day. I couldn’t give my 100 per cent today, like not my best,” she said.
It has been, however, a breakthrough year for the 20-year-old Ostapenko after she reached the third round at the Australian Open and the last eight at Wimbledon after lifting the Suzanne Lenglen Cup in Paris.
“In general, I think it was not bad. Of course, I expected to play better here, but unfortunately, couldn’t give my best today,” she said.
Kasaktina seized the opportunity and shook her early nerves to reach the last 16 of a grand slam for the first time.
“In the beginning I was a little bit nervous but I tried to stay focused and play my game and it paid off,” said Kasaktina, who faces Estonian qualifier Kaia Kanepi for a place in the quarter-finals.
Editing by Ed Osmond