US Open 2014: Maria Sharapova tested as Agnieszka Radwanska falls in New York

Sharapova survived an attritional battle against Romania's Alexandra Dulgheru

Maria Sharapova survived an attritional battle against Romania's Alexandra Dulgheru to reach the third round of the US Open but Agnieszka Radwanska became the first major casualty.

Sharapova paid the price for an erratic display in the first set and needed two hours and 38 minutes to grind out a 4-6 6-3 6-2 win over world number 95 Dulgheru.

The fifth seed will hope it is a good omen after she recovered from a set down in a succession of matches at the French Open before going on to take the title.

"We started under the sun and finished under the lights," said Sharapova. "It was tricky conditions, a tough opponent so I'm very happy I was able to come back and come through and win this match."

Radwanska dropped just one game in a rapid first-round win over Sharon Fichman but world number 39 Peng Shuai was a deserved 6-3 6-4 winner.

It was deja vu for Radwanska, who suffered her only previous loss to the Chinese player in the second round at Flushing Meadows four years ago.

Radwanska came into the tournament in a positive frame of mind after winning the title in Montreal earlier this month but she has never found the US Open a happy destination.

The Pole has reached at least the quarter-finals at every other grand slam but has not made it past the fourth round here.

Radwanska said: "It always is disappointing (to go out), especially in the first week of a grand slam. But I think here it's not really a new thing for me unfortunately.

"I really want to know the answer. Then maybe I will find a way to play better here and just try another way to be in the second week.

"There is just something here that I can't really pass those rounds. I have couple of years to try. Hopefully one day I will do it."

Radwanska did not feel she gave a bad performance, saying: "Every game was pretty tight and a lot of rallies. But I think in the important moments she was just playing a little bit better."

There was disappointment, too, for 21st seed Sloane Stephens, who from a set and 3-0 up against Johanna Larsson slumped to a 5-7 6-4 6-2 loss.

The American had balanced out poor performances in regular tour events with success at the slams but lost in the first round at Wimbledon and has underachieved again here.

Stephens, who hit a whopping 63 unforced errors, said: "I haven't had that great of a season. But I'm not going to dwell on it. There is always room for improvement.

"Everyone has their ups and downs. Everyone goes through times like this. I'm not the first person and won't be the last. I'm looking forward to the next tournament. And that's all I can really do, just look forward."

Second seed Simona Halep avoided the struggles of round one, when she was a set down to unranked Danielle Rose Collins, with a swift 6-2 6-1 victory over Jana Cepelova.

The Romanian is ranked in the top two at a slam for the first time, and she said: "The first round was tough because of the pressure but now I feel okay.

"I feel relaxed. I saw that even if I'm second seeded, it's like normal. It's like before. So I have just to enjoy the match and just be happy.

"I am here and I think I deserve to be here because I won many matches, good matches with top players."

Tenth seed Caroline Wozniacki was detained slightly longer but was nevertheless a comfortable 6-3 6-4 winner over Aliaksandra Sasnovich and next meets French Open semi-finalist Andrea Petkovic.

The 18th seed fought back from 5-3 down in the deciding tie-break to beat Monica Puig 3-6 6-3 7-6 (7/5) while there were straight-sets wins for Jelena Jankovic and Angelique Kerber.

Kerber next plays 17-year-old Belinda Bencic, who upset 31st seed Kurumi Nara 6-4 4-6 6-1.

PA

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