There’s no question the 21-and-under category had a significant impact on the ATP tour this year, and a number of them are in contention for the Next Gen ATP Finals in Milan.
But while players like Frances Tiafoe and Andrey Rublev—and, of course, Alexander Zverev—have taken that next step in their development by winning titles, many of them have yet to hoist that first-place hardware.
Here’s a look at five of them that have either qualified for Milan or are close to making the field who will be looking for the ultimate affirmation of being called a champion for the first time.
1
Stefanos Tsitsipas (No. 2 in the Race to Milan, No. 15 on the ATP)
The Greek teenager is the only player officially qualified for Milan. He has taken his big-hitting game to new heights in 2018 with two final-round appearances on different surfaces. World No. 1 Rafael Nadal stopped him on clay in Barcelona and on hard courts in Toronto.