In an interview with ProSport, the former world no. 2 Tommy Haas commented on Serena Williams' legacy in tennis. The German said: "Serena is one of the greatest players of all time. You cannot compare someone with her.
Naomi Osaka is an unbelievable player, she is young and I think she will be back strong on the grass and hard (courts). The women's tour is interesting, with players like Victoria Azarenka coming back. There are many different stories, look at what Ashleigh Barty does.
I think everyone has a different trajectory, and I think Serena will seek another Grand Slam title again. Angelique Kerber is instead working with Rainer Schüttler. It's normal to have ups down, you may work on certain aspects sometimes and you do not see results immediately."
On Alexander Zverev, Haas said: "He is such an amazing player at such a young age. What can he improve? Anyone can improve something, even if that sounds scary for a world no. 5. But he could still work on his forehand and play a bit more aggressive overall.
Me coaching him? He already has a great family next to him and Ivan Lendl." On Halep, Mansour Bahrami said: "She is a fighter, a great girl. Four or five years ago I was asked if she can become the world no. 1, I said yes and I think she will become world no.
1 again. She is a very complete player. She needs to be a bit more comfortable." Yevgeny Kafelnikov concluded: "Simona Halep is a great player, her game perfectly suits to all the surfaces, grass, hard. That's why I think she can win a Grand Slam title anywhere."