Radwanska sinks Jankovic
A review of Saturday's action in the women's singles at the US Open, as Agnieszka Radwanska progressed.
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Second seed Agnieszka Radwanska survived a potentially tricky test against Jelena Jankovic to reach the fourth round at the US Open.
The Pole has never gone beyond the last 16 at Flushing Meadows and had to come from a set and a break down in her last match against Carla Suarez Navarro, while she is also carrying a right shoulder problem.
But she was the more solid player throughout, moving well and frustrating Jankovic, and - although the second set was close - Radwanska came through impressively to win 6-3 7-5.
In the fourth round she will play in-form Italian Roberta Vinci, the 20th seed, who ousted 13th seed Dominika Cibulkova 6-2 7-5.
Vinci, who won the WTA Tour title in Dallas last weekend, has her work cut out if she is to make the quarter-finals, though, having lost to Radwanska in all their previous four meetings.
Fourth seed Serena Williams thrashed Ekaterina Makarova in straight sets to move into the fourth round - and gain revenge for her Australian Open elimination.
Makarova ended Williams' challenge in Melbourne at the start of the year, with the American mustering just five games in a humiliating defeat at the season's opening grand slam event.
She has had to wait seven months to face her again but made no mistake when the opportunity arose with a dominant display on Arthur Ashe stadium.
The first set was keenly contested but Williams cruised through the second to win 6-4 6-0 in one hour and 20 minutes.
Sixth seed Angelique Kerber continued her impressive run through the draw with a 6-1 6-2 victory over Olga Govortsova of Belarus.
German Kerber, whose meteoric rise up the rankings began with a surprise run to the semi-finals here last year, ousted Venus Williams in a tough three-setter on Thursday night but had no such problems this time.
Govortsova had her blood pressure checked at the end of the first set as she struggled with the heat, but was only kept on court for 56 minutes.
Kerber next faces 10th seed and French Open finalist Sara Errani, who was an even easier 6-1 6-1 winner against Russian qualifier Olga Puchkova.
Ana Ivanovic continued her return to form with an impressive three-set win over American rising star Sloane Stephens in the night session on Arthur Ashe Stadium.
It was a repeat of their clash at the same stage last year, which Ivanovic won, but 19-year-old Stephens has improved a lot and took the opening set on a tie-break.
The 12th seed hit back, though, levelling the match and then pulling away in the decider to win 6-7 (4/7) 6-4 6-2.
In the fourth round Ivanovic will play unseeded Bulgarian Tsvetana Pironkova, a former Wimbledon semi-finalist.