LONDON (AP) - Sloane Stephens of the U.S. reached Wimbledon's fourth round for the first time, coming back to close out an uneven 7-6 (3), 0-6, 6-4 victory over 196th-ranked qualifier Petra Cetkovska of the Czech Republic on Saturday in a match suspended the night before because of darkness.
They resumed at the start of the third set, and the 17th-seeded Stephens came out slowly, falling behind 2-0.
But Cetkovska double-faulted three times while letting Stephens take a 4-3 edge. Stephens then held for 5-3, saving a break point with an ace, and later capped the match with a cross-court forehand winner.
Stephens is in the round of 16 for a third consecutive Grand Slam tournament. At the Australian Open in January, she defeated Serena Williams en route to the semifinals.
Laura Robson became the first British woman since 1998 to reach the fourth round of Wimbledon, rallying from a set and a break down and benefiting from a crucial overturned call to beat Marina Erakovic of New Zealand 1-6, 7-5, 6-3.
Erakovic served for the match in the second set, only for Robson to break back. Having then earned a set point at 6-5, Robson barely got a return back that looped high and just caught the edge of the line, but was called out before Erakovic could smack a winner. Robson successfully challenged the call and the point was replayed, with Erakovic double-faulting to hand her opponent the set.
Robson then jumped out to a 4-0 lead in the third set, and clinched the victory with a forehand winner.
Playing well even though his father, who's also his coach, was barred from the tournament because of an assault case, 59th-ranked Bernard Tomic reached Wimbledon's fourth round by eliminating No. 9-seeded Richard Gasquet 7-6 (7), 5-7, 7-5, 7-6 (5) Saturday.
Tomic, a 20-year-old Australian, hit 19 aces while getting 80 percent of his first serves in and saving 7 of 8 break points.
His father, John Tomic, was told to stay away from Wimbledon and other tournaments while his court case is pending in Madrid, Spain. He is accused of head-butting Tomic's hitting partner.
Tomic's best Grand Slam showing came at Wimbledon in 2011 as an 18-year-old qualifier, when he was the youngest player to get to the tournament's quarterfinals since Boris Becker in 1985.
Fourth-seeded Agnieszka Radwanska held off American teenager Madison Keys to reach the fourth round at Wimbledon with a 7-5, 4-6, 6-3 win on Saturday.
Radwanska, who lost to Serena Williams in last year's final, needed five match points before sealing the victory when Keys sent a return wide. The American had erased four match points in the previous game and finished with 15 aces, but could not muster a comeback against the Pole.
Radwanska reached the fourth round for the sixth time in eight appearances at the All England Club.
The 18-year-old Keys was making her Wimbledon debut and was one of four American women to reach the third round.
Former U.S. Open champion Juan Martin del Potro says he needs to consult a doctor after injuring his left knee and ankle during a third-round victory at Wimbledon.
Del Potro overcame a scary late fall to beat Grega Zemlja of Slovenia 7-5, 7-6 (3), 6-0 Saturday, but said he twisted his ankle and hyper-extended his knee.
Del Potro hurt his left leg when chasing down a drop shot in the third set, skidding awkwardly on the grass and tumbling face first. He received treatment after taking a 4-0 lead and took a medical timeout after the next game, and returned to break Zemlja again to clinch the win.
The eighth-seeded Argentine said "it was really painful. I was a little scared at that moment. ... Now I start to feel something in my knee and my ankle, as well. I will check with the doctor very soon."
Fourth-seeded David Ferrer came from a set down twice to reach the fourth round at Wimbledon, wearing down Alexandr Dolgopolov of Ukraine 6-7 (6), 7-6 (2), 2-6, 6-1, 6-2 on Saturday.
In a back-and-forth match on Court 1, Ferrer needed treatment for blisters on his foot but still managed to outlast the 26th-seeded Dolgopolov and reach the last 16 for the fourth year in a row.
He reached the quarterfinals last year and is coming off his first career Grand Slam final at the French Open.
Dolgopolov was trying to become the second Ukrainian man to reach the fourth round at the All England Club after Andrei Medvedev in 1994.
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