Fabio Fognini
Malek Jaziri
Mischa Zverev
Mikael Ymer
Yuichi Sugita
Denis Istomin
Fernando Verdasco
Robin Haase
Viktor Troicki
Simone Bolelli
Jan-Lennard Struff
Marius Copil
Elias Ymer
Leonardo Mayer
Hyeon Chung
Marton Fucsovics
Marcos Baghdatis
Norbert Gombos
Jeremy Chardy
Alessandro Giannessi
Jerzy Janowicz
Pierre-Hugues Herbert
Jurgen Zopp
Lukas Lacko