PARIS, June 4: Spain�s Rafael Nadal continued his superb form with a dominant 6-1, 6-2, 6-2 win over Roberto Bautista Agut to move easily into the French Open quarterfinals, while Czech second seed Karolina Pliskova advanced to the fourth round on Sunday with a 7-5, 6-1 victory over Germany�s Carina Witthoeft.
The Spaniard, 31, is looking to become the first man to win 10 titles at a single Grand Slam event.
His victory was not quite as simple as Friday�s incredible 6-0, 6-1, 6-0 defeat of Nikoloz Basilashvili but fourth seed Nadal has not dropped a set yet.
He will now face either Milos Raonic or Pablo Carreno Busta in the last eight.
Margaret Court is the only player to have won 10 or more titles at one Grand Slam event, winning the Australian Open on 11 occasions between 1960 and 1973.
Nine-time winner Nadal now has a 76-2 win-loss record at Roland Garros with his only defeats coming against Robin Soderling in the fourth round in 2009 and Novak Djokovic in the 2015 quarterfinals.
It is the 11th time he has reached the quarterfinals at the French Open � a record shared with Roger Federer.
World number two Djokovic could match that record when he faces Albert Ramos-Vinolas later on Sunday. Djokovic and Nadal are seeded to meet in the semifinals.
In other matches of the men�s category, Japan�s eighth seed Kei Nishikori survived a scare to beat unseeded South Korean Hyeon Chung in five sets.
Nishikori, 27, needed almost four hours to win 7-5, 6-4, 6-7 (4-7), 0-6, 6-4 in a third-round match finished on Sunday after the previous day�s rain delay.
Big-serving American John Isner, seeded 21, was knocked out in his third-round match by Karen Khachanov of Russia, who won 7-6 (7-1), 6-3, 6-7 (5-7), 7-6 (7-3). The 21-year-old will now face British world number one Andy Murray in the fourth round on Monday.
On the other hand, Pliskova advanced to the fourth round with a victory over Witthoeft.
Pliskova, who had won just twice in five previous French Open appearances before this year, will face either Paraguay�s Veronica Cepede Royg or Mariana Duque-Marino of Colombia for a quarterfinal spot.
Former world number one Caroline Wozniacki moved into the quarterfinals with a three-set win over Russia�s Svetlana Kuznetsova. The Dane, 26, had not reached the last eight at Roland Garros since 2010 but came through to win 6-1, 4-6, 6-2 against the eighth seed and 2009 champion.� Agencies