Top seed Daniil Medvedev beaten by Nick Kyrgios at US Open
The 18-year-old was leading 6-4, 6-4, when he pulled out of his first-set tiebreak in the second set to face the Serb.
Medvedev broke back to level the score to five before Kyrgios fought hard for an hour to finally break back and win in three.
“I didn’t really see any openings to go to the net, I just had this feeling of not being able to hit the ball back at him,” Kyrgios said.
“He was just hitting the ball so much and was so good at that.
“He hit one back.
“He gave up a break in the second set. I definitely learned a lot from it.”
Kyrgios is now ranked 16th in the world, having moved up from No. 24 on Monday after knocking off No. 10 Grigor Dimitrov.
He is the first Australian, and second male, player to reach the second week of a Grand Slam men’s event since John Fitzgerald in 1983.
On the women’s side, No. 2 Simona Halep is out of the main draw at any Grand Slam with a back injury but hopes to be back for Wimbledon.
Halep was set to play No. 14 Angelique Kerber in the third round of the French Open.
Her last match in the fourth round was a shock loss to No. 23 Madison Keys, who has now won this year’s tournament four times.
Kerber was also a key player in the final of the Rogers Cup last month, the world’s first women’s singles event for Canadian-born players, where she beat Karolina Pliskova 6-2, 2-1.
Simona Halep, who was left off the Rogers Cup men’s draw after failing to make the main draw, said her condition was not ideal.
“Right now I have