NEW YORK, Sept 3 (Reuters) - Czech Petra Kvitova added another chapter to her comeback story by stunning Wimbledon champion Garbine Muguruza in straight sets to reach the U.S. Open quarter-finals, while Maria Sharapova’s return to the big stage ended in defeat to Latvian Anastasija Sevastova.
Kvitova, whose progress has been slow but steady since a horrifying knife attack on her left hand in December, showed similar fighting spirit that won her the Birmingham title this year as she dismissed the third seed 7-6(3) 6-3 in one hour and 45 minutes.
The twice Wimbledon champion, playing in only her eighth tournament since her career-threatening injury, set up a last eight clash with Venus Williams after the American dumped out Spaniard Carla Suarez Navarro 6-3 3-6 6-1.
Venus has reached grand slam finals at the Australian Open and Wimbledon this year and Kvitova said she would have a tough task ahead.
“It will be a great match for me to step on Ashe again probably and play there. I mean, we always had tough battles. I will try my best. I mean, she has a big serve, big server of course,” she said.
Wildcard Sharapova, who played in her first major since a 15-month doping ban, said there were a lot of positives in her defeat by Sevastova. “Just competing, you know, being in that competitive environment. That’s what I missed,” she said.
Sharapova’s power play was nullified by the 16th seed’s control and delicate touch, and she eventually ground out a 5-7 6-4 6-2 win in two hours and 16 minutes.
Sevastova meets the unseeded Sloane Stephens after the American reached the quarter-finals for the first time in her career with a 6-3 3-6 6-1 win over Julia Goerges of Germany.
Sam Querrey, the last American standing in the men’s singles, powered past Germany’s Mischa Zverev 6-2 6-2 6-1 in one hour and 15 minutes, the shortest completed men’s singles match of the tournament so far.
Next up for Querrey, the first American man to reach the U.S. Open quarter-finals since 2011, is South Africa’s 28th seed Kevin Anderson, who outlasted Italian Paolo Lorenzi 6-4 6-4 6-7(4) 6-4.
Canadian teenager Denis Shapovalov was knocked out by Pablo Carreno Busta 7-6(2) 7-6(4) 7-6(3) and the Spaniard was joined in the last eight by Argentine Diego Schwartzman who downed 16th seed Lucas Pouille of France 7-6(3) 7-5 2-6 6-2.
Highlights from day seven of the U.S. Open tennis championships on Sunday (times GMT):
- Sam Querrey, the last American standing in the men’s singles, blasted 55 winners and 18 aces in his routine 6-2 6-2 6-1 win over Germany’s Mischa Zverev in one hour and 15 minutes.
- Querrey, seeded 17th, meets South Africa’s Kevin Anderson in the quarter-finals.
- A resurgent Petra Kvitova stunned Spain’s Wimbledon champion and third seed Garbine Muguruza 7-6(3) 6-3 to enter the quarter-finals in one hour and 45 minutes.
- The 13th seeded Czech, a two-time grand slam champion, faces American Venus Williams next.
0015 ANDERSON MARCHES INTO QUARTER-FINALS
- South Africa’s Kevin Anderson, the men’s 28th seed, beat Italian Paolo Lorenzi 6-4 6-4 6-7(4) 6-4.
- Anderson faces either Germany’s Mischa Zverev or American Sam Querrey in the quarter-finals.
- Venus Williams advances to the quarter-finals with a 6-3 3-6 6-1 win over Spaniard Carla Suarez Navarro.
- The ninth seed will play either Czech Petra Kvitova or reigning Wimbledon champion Garbine Muguruza next.
- Argentine Diego Schwartzman knocked out men’s 16th seed Lucas Pouille of France 7-6(3) 7-5 2-6 6-2 to reach the last eight.
- The unseeded Schwartzman, who beat fifth seed Marin Cilic in the third round, meets 12th seeded Spaniard Pablo Carreno Busta for a place in the semi-finals.
- Russian wild card Maria Sharapova was knocked out of the U.S. Open in the fourth round after losing 5-7 6-4 6-2 to Latvian 16th seed Anastasija Sevastova.
- Former world number one Sharapova made a total of 51 unforced errors as she crashed out.
- Sevastova faces American Sloane Stephens in the quarter-finals.
- Unseeded American Sloane Stephens reached the quarter-finals for the first time after beating women’s 30th seed Julia Goerges of Germany 6-3 3-6 6-1.
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- Spain’s Pablo Carreno Busta won a hard-fought match against Canada’s Denis Shapovalov, beating the 18-year-old 7-6(2) 7-6(4) 7-6(3) to reach the quarter-finals.
- The 12th seed has reached the last eight of the U.S. Open for the first time and will face either Argentine Diego Schwartzman or Frenchman Lucas Pouille.
- Carreno Busta also reached the quarter-finals of the French Open this year.
- Spain’s 12th-seeded Pablo Carreno Busta kicks off the action against 18-year-old Canadian Denis Shapovalov in the fourth round at the Arthur Ashe stadium, followed by Russian Maria Sharapova’s match against Latvian Anastasija Sevastova.
- Wimbledon champion Garbine Muguruza of Spain takes on two-time grand-slam winner Petra Kvitova of Czech Republic on the main showcourt later on Sunday.
- American Sloane Stephens will play 30th-seed Julia Goerges of Germany at the Louis Armstrong stadium.
- Argentina’s Diego Schwartzman, who knocked out fifth seed Marin Cilic in the third round, faces 16th-seeded Frenchman Lucas Pouille. (Compiled by Aditi Prakash, Simon Jennings and Shrivathsa Sridhar in Bengaluru; Editing by Clare Fallon)