Nicolas Alvarez Varona @ Challenger Zagreb

Nino Serdarusic Damir Dzumhur Mirza Basic Luka Pavlovic Zhizhen Zhang Marco Trungelliti Ramkumar Ramanathan Botic Van De Zandschulp Gastao Elias Carlos Taberner Norbert Gombos Riccardo Bonadio Vit Kopriva Borna Gojo Domagoj Biljesko Alejandro Tabilo Lorenzo Giustino Emilio Gomez Facundo Mena Nicolas Kicker Leonardo Mayer Go Soeda Jurij Rodionov Federico Coria Blaz Kavcic Andrey Kuznetsov Adrian Mannarino David Jorda Sanchis Antun Vidak Jordan Thompson Daniel Cukierman Roman Safiullin Akira Santillan Nicolas Alvarez Varona Lukas Lacko Andrej Martin Evgeny Tyurnev Frederico Ferreira Silva Brayden Schnur Cem Ilkel Christopher O'Connell Matteo Viola Evgeny Donskoy Juan Pablo Ficovich Maximilian Marterer Yasutaka Uchiyama Mohamed Safwat Viktor Durasovic Pedro Sousa Michael Mmoh