LONDON -- Sloane Stephens reached her second Grand Slam quarterfinal of the year, beating 19-year-old Monica Puig of Puerto Rico 4-6, 7-5, 6-1 Monday at Wimbledon.
The 17th-seeded Stephens is the last American singles player left at the grass-court tournament.
She finished her 2-hour, 4-minute victory shortly after defending champion Serena Williams' 34-match winning streak ended with a three-set loss to Sabine Lisicki.
For the first time in 101 years, no men representing the US even made it to Wimbledon's third round.
Stephens, who is 20, eliminated Williams in the quarterfinals at the Australian Open in January to reach her first career major semifinal.
Next for Stephens in her second appearance at Wimbledon is a match against No. 15 Marion Bartoli, the 2007 runner-up, or 104th-ranked Karin Knapp.
Former champion Petra Kvitova was the first player to reach the quarterfinals at Wimbledon, beating Carla Suarez Navarro of Spain 7-6 (5), 6-3 on Monday.
She was joined minutes later by Kirsten Flipkens of Belgium, who reached her first career Grand Slam quarterfinal by ousting Flavia Pennetta of Italy 7-6 (2), 6-3 - a year after her ranking plummeted as low as 262nd because of injuries.
In a busy day at Wimbledon, all remaining men and women were set to play their fourth-round matches.
Top-ranked Novak Djokovic will play on Centre Court later, along with second-seeded Andy Murray.
Kvitova served for the first set at 6-5, but was broken at love and then lost four straight points in the tiebreaker to trail 4-3.
But she capitalized on a couple of errors by the Spaniard and converted her first set point when Suarez Navarro netted a backhand.
In the second set, she broke to lead 4-2, and served out the match at love when Suarez Navarro sent a forehand long.
The 18th-ranked Suarez Navarro was the first Spanish woman since 2001 to reach the fourth round at the All England Club.
Kvitova will next play Flipkens, whose career-best Grand Slam showing comes after she had much of 2012 ruined by injuries, including blood clots in her calf.
She missed last year's Wimbledon, but has bounced back this year and is ranked 20th.
After clinching the win against Pennetta with an overhead smash, Flipkens fell on her back on the grass, covering her face with her hands in apparent disbelief.