With that result, there will now be a first-time Grand Slam champion this year at Roland Garros. "I'm sure that when we go to the United Kingdom to play, they will do a great job, too".
Chung double-faulted on match point to gift Nishikori a 7-5, 6-4, 6-7 (4/7), 0-6, 6-4 victory.
As if by stealth, Dominic Thiem moved into the quarterfinals with another quietly devastating performance.
Pliskova will next face Paraguay's Veronica Cepede Royg, who beat Mariana Duque-Marino of Colombia 3-6, 7-6 (2), 6-3.
On form, Thiem is positioning himself as the main threat to Rafa Nadal winning a 10th crown here.
Venus Williams' 20th attempt to win the French Open ended just like the other 19 - with her not the last person standing in Paris.
Kelly Bush Novak, Williams's publicist, said last month that the U.S. star "looks forward to returning in 2018".
The match lasted a minute short of two hours, drawn out by a second-set tiebreaker which Venus and Harrison lost 7-5.
FLYNETSerena Williams showed off her bump at the French Open today
Muguruza, who was seeded No. 4 in Paris, beat Serena Williams in the French Open final a year ago.
World number 290 and qualifier Petra Martic reached the last 16 with a 6-1, 6-1 win over Latvian 17th seed Anastasija Sevastova. "I still can't believe that I'm sitting here".
He wasted three of them serving at 5-4 up, and three more when serving at 7-6.
Venus Williams has lost in the fourth round of the French Open to 30th-seeded Timea Bacsinszky of Switzerland, meaning the tournament will produce a first-time Grand Slam champion. After the 21-year old held, Williams was presented with a second chance to serve out the set and this time she had no issues, holding to love to grab a one-set lead. "The atmosphere was just, yeah, amazing", Mladenovic said. "The risk was rewarded for her", Williams said.
"My goal is to improve every round and today I feel like I improved even more than the last rounds and played the big points well".
Serena Williams is pregnant and the American recently said that they do not want to know the gender of the baby until it's born.
Despite hitting eight double-faults, Khachanov won all 23 games he served against Inser, saving four break points. The Swiss clinched the match with a delectable drop shot.
"He doesn't like it when I throw racquets".
"I'm not looking for any tests - I'm looking to run away with it", she said, smiling.