In an interview to We Love Tennis, Serena Williams's coach Patrick Mouratoglou commented on Stefanos Tsitsipas's breakthrough in the tennis elite. Mouratoglou was asked if he expected the 20-year-old to achieve such a big success by reaching his maiden Grand Slam semifinal at the Australian Open.
"Yes and no," Mouratoglou admitted. "Actually, no one thought that everything would go so fast. On the other side, since when I came to the academy, I was sure he would become a great tennis player. His potential is immense and I think that from now we are all convinced of it.
I can never know exactly how fast players will achieve their potential. My only certainty is that Stefanos will reach the highest level because he has the determination, the ability to work, the mindset and the needed potential.
He can serve better and improve on his return. He can also be more efficient at the net and improve his game near the net. Finally, he needs to have a good plan in every match to reach the next level." Mouratoglou also assessed the Australian Open overall from his point of view: "The younger players of the Mouratoglou Academy made progresses: the 18-year-old Rudolf Molleker went through qualies and became the youngest player in the men's draw; Alexei Popyrin, a 19-year-old, reached the third round where he lost to Lucas Pouille in five sets.
Finally, Stefanos Tsitsipas, 20 years old, won against Roger Federer and reached the semifinals. We have been working with them for a certain number of years and the results at the highest level are starting to come, so obviously it's extremely funny, even if there is still a lot of work to do to achieve their dreams."