Nick Kyrgios described Serena Williams' career as one of a kind as he does not think that anyone ever will be able to emulate the American's success and accomplishments. Williams, 40, won 39 Grand Slam titles during her career - 23 in singles, 14 in women's doubles and two in mixed doubles.
Also, Williams won the WTA Finals event five times and captured four Olympic gold medals. When it comes to her ranking, she was the top-ranked player in both singles and doubles. On Friday, Williams' career came to an end after suffering a three-set defeat to Ajla Tomljanovic.
"She has had a career that I don't think anybody else will emulate," Kyrgios said. "You know, you've got a couple on the men's side who are trying to catch her in Grand Slams but Nadal, Serena, Federer, Novak, these are once in a generation athletes and I wouldn't even put myself in the same category, ever.
It is a special moment for her, I'm sure. She played extremely well as well, she won two matches and nearly got on top there so that's a hell of a way to go out and I just appreciate what she has done, I'm sure everybody in this building does as well.'
Kyrgios paid tribute to Williams
After playing the final match of her career, Williams addressed the crowd and the support she was receiving throughout the week. Williams acknowledged that she did notice all the support and she was extremely grateful to everyone who came out to support her.
“It was some really great moments today. Not today, but this week, has been really great. Just so much support, so much love. It was really amazing and overwhelming. And I just feel like the whole crowd was really wanting to push me past the line.
I’m so thankful and grateful for that," Williams reflected. Meanwhile, Kyrgios has been through to the US Open round-of-16, where he plays Daniil Medvedev.