Guillermo Garcia-Lopez
Yuichi Sugita
Leonardo Mayer
Mischa Zverev
Pablo Cuevas
Ricardo Ojeda Lara
Benoit Paire
Nicolas Jarry
Malek Jaziri
Tennys Sandgren
Guido Pella
Peter Gojowczyk
Rogerio Dutra Silva
Jared Donaldson
Stefanos Tsitsipas
Corentin Moutet
Jaume Munar
Joao Sousa
Gilles Simon
Ilya Ivashka
Ivo Karlovic
Tommy Robredo
Martin Klizan
Federico Delbonis
Roberto Carballes Baena
Andreas Haider-Maurer
Dusan Lajovic
Pedro Martinez
Marcel Granollers
Mikhail Kukushkin
Bjorn Fratangelo
Alexey Vatutin