Rafael Nadal notched up his 50th win at the US Open to reach the quarter-finals for the seventh time Monday as teen sensation Andrey Rublev and comeback queen Kaia Kanepi muscled into the spotlight. World number one Nadal, who could meet old rival Roger Federer for the first time in New York at the semi-final stage, crushed Ukraine's Alexander Dolgopolov 6-2, 6-4, 6-1.
The 31-year-old Spaniard goes on to face Russian 19-year-old Rublev, who stunned Belgian ninth seed David Goffin 7-5, 7-6 (7/5), 6-3 to become the youngest quarter-finalist since Andy Roddick in 2001. As Rublev pondered a first Slam quarter-final, the women's draw saw Estonia's world number 418 Kanepi book her place in the last eight of a major for the sixth time.
The 32-year-old is just the second qualifier to make the quarters in New York. Nadal, the 2010 and 2013 champion, showed no signs of the struggles that bedeviled him in the two previous rounds, when he dropped the opening set before prevailing in four. His 23 winners were just shaded by world number 64 Dolgopolov's 25 but the Ukrainian's 39 unforced errors were more than three times those committed by Nadal.
"I played a solid match with not many mistakes," said Nadal, the reigning French Open champion. "He's a player who can play amazing shots but sometimes he can be very unpredictable so I just waited for my opportunity." Rublev, ranked 53, has won 13 of his last 17 matches after breaking the top 100 for the first time in June.
He marked his entry into the top 50 by winning the Umag title as a lucky loser in July and he insists all the pressure will be on Nadal who is chasing a 16th major. "Rafa is a real champion. I will try to do my best - I have nothing to lose," said Rublev, whose push to victory on Monday was helped by Goffin suffering a left knee injury. "It was impossible to win today," said the Belgian.