#1 Andrey Rublev
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
The highest ranked U-20 player in the world today, Andrey Rublev is the only tennis player on this list who has won an ATP title. He did so in Croatia in July by defeating Paolo Lorenzi in the final.
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He had a breakthrough performance in the US Open as well where he reached the quarter-final, defeating Grigor Dimitrov and David Goffin along the way.
He has a massive forehand and has produced some breathtaking shots throughout the year. Currently 2nd on the list in the race to Milan, he will look to get the better of World no. 4 Sascha Zverev in the tournament which will take place just before the ATP World Tour Finals.
Edited by Arvind Sriram