4. David Goffin
The dimunitive Belgian David Goffin showed the world that nothing is impossible if you set your mind to something. Coming back from an injury hiatus and taking two titles in the Asian swing, Goffin displayed a stellar run of grit and confidence this season.
He took the Nitto ATP Finals and the Davis Cup by storm with his scintillating shot-making blended with a fine balance of aggression and composure. If he can ride this massive wave of self-improvement into the next year, he will have a shot at breaking into the top five.
Prediction: Top 5
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Edited by Musab Abid