Yuichi Sugita
Mate Pavic
Kyle Edmund
Bernard Tomic
Denis Istomin
Jan-Lennard Struff
Nikoloz Basilashvili
Viktor Troicki
Peter Gojowczyk
Leonardo Mayer
Guido Pella
Borna Coric
Jared Donaldson
Stefanos Tsitsipas
Yen-Hsun Lu
Mikael Ymer
Dusan Lajovic
Adrian Menendez-Maceiras
Marcos Baghdatis
Vasek Pospisil
Taylor Fritz
Di Wu
Thiago Monteiro
Yibing Wu