- US Open
Ivanovic crashes out of US Open
Ana Ivanovic crashed out of the US Open after suffering a straight-sets defeat to Karolina Pliskova in the second round on Thursday.
Ivanovic came into the tournament on the back of her best season since winning the 2008 French Open, having recorded 47 wins - more than any woman on tour this year.
However, she made 39 unforced errors as she went down 7-5 6-4 to Czech world No.42 Pliskova.
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"It was just really bad day," said Ivanovic, who was once ranked No.1 in the world and whose three titles this season equal the career high she set in 2008.
But she hasn't matched that success in grand slam tournaments. She made the quarter-finals of the Australian Open but fell in early rounds at Roland Garros and Wimbledon.
"This is exactly what I think I have to re-assess," she said. "I had great lead-ups to every grand slam. I played a lot of matches and won lot of matches. At the grand slams I just haven't performed that well."
Ivanovic struggled repeatedly with her first serve and was unable to find any rhythm as she failed to progress to the third round of a grand slam for the first time this year.
Behind fourth seed Agnieszka Radwanska, who lost to Peng Shuai in the second round, eighth seed Ivanovic is the second biggest casualty of the women's draw at Flushing Meadows.
Meanwhile, defending champion Serena Williams needed just 56 minutes to dispatch her fellow American Vania King 6-1 6-0. Williams next faces Varvara Lepchenko of the United States in the third round.
"It's so hard to play in the wind," said Williams. "Getting through that game was really important. You have to be able to adjust."
Wimbledon runner-up Eugenie Bouchard reached the US Open's third round for the first time by beating 80th-ranked Sorana Cirstea 6-2 6-7(4) 6-4 on Thursday night.
Seventh seed Bouchard was the only woman to reach the semi-finals at the year's first three grand slam tournaments. She lost in that round at the Australian Open and French Open, before her run at the All England Club made her the first Canadian tennis player to reach a major final. Bouchard made her US Open debut last year, exiting in the second round.
If Bouchard makes it to the quarter-finals, she could face third seed Petra Kvitova in a rematch of the Wimbledon final after the Czech beat comaptriot Petra Cetkovska 6-4 6-2.
CiCi Bellis - who on Tuesday at the age of 15 became the youngest player to win a US Open match since 1996 - lost to 48th-ranked Zarina Diyas 6-3 0-6 6-2.
Bellis, ranked 1,208th and playing in her first tour-level event, won seven games in a row during one stretch. "Maybe it didn't turn out how I wanted it to, but thank you, everybody, for coming out and watching," she said. "It was amazing. I mean, I never thought I'd be here."
Elsewhere, Victoria Azarenka came back from losing the first three game to beat American Christina McHale 6-3 6-2 in another second-round match.
Two-time Australian Open champion Azarenka has been hampered by injuries, including one to her left foot that kept her out for much of the season and a knee problem that led her to pull out of Cincinnati.
"I don't want to talk about frustration. I just want to talk about positives," Azarenka said. "I love tennis so much and I couldn't wait to get back on the court."
Kaia Kanepi saved two match points to beat 2011 champion Sam Stosur 3-6 6-3 7-6(8). She next faces Carla Suarez Navarro in the third round.
No.23, Anastasia Pavlyuchenkova and No.27 Madison Keys also lost on Thursday, bringing the total to 11 seeded women gone after only two rounds.