Novak Djokovic has become the first man to reach the French Open quarterfinals 10 years in a row.
Even Rafael Nadal never accomplished that.
Djokovic moved into the round of eight with a 6-3, 6-2, 6-2 victory over 45th-ranked Jan-Lennard Struff of Germany, saving the only break point he faced and compiling 31 winners to only 12 unforced errors.
The top-seeded Djokovic is bidding for a fourth consecutive Grand Slam title and his second trophy at Roland Garros, where he won the championship in 2016.
Djokovic hasn't dropped a set through four matches this year. But he also has not faced a seeded player yet.
His quarterfinal opponent will be No. 5 Alexander Zverev or No. 9 Fabio Fognini.
Kei Nishikori, meanwhile, also reached the quarterfinal of the tournament. The Japanese tennis star completed a five-set win over two days to reach the French Open quarterfinals.
The seventh-seeded Nishikori overcame strong resistance from local favorite Benoit Paire to win 6-2, 6-7 (8), 6-2, 6-7 (8), 7-5.
Their fourth-round match had been suspended by darkness on Sunday, with Nishikori leading two sets to one.
Paire saved two match points in the fourth-set tiebreaker to level at two sets apiece and led 5-3 in the decider but was ultimately undone by his own mistakes. The Frenchman finished with 79 unforced errors.
Nishikori broke back with a backhand winner and made the decisive break in the 11th game, sealing the match on his next service game when Paire sent a forehand return into the
Nishikori will next face defending champion Rafael Nadal in the last eight.
