Kei Nishikori
Pierre-Hugues Herbert
Tallon Griekspoor
Karen Khachanov
Damir Dzumhur
Stefanos Tsitsipas
Milos Raonic
Philipp Kohlschreiber
Daniil Medvedev
Jeremy Chardy
Nikoloz Basilashvili
Hyeon Chung
Gael Monfils
David Goffin
Denis Shapovalov
Franko Skugor
Fernando Verdasco
Matthew Ebden
Tomas Berdych
Gilles Simon
Marton Fucsovics
Martin Klizan
Andreas Seppi
Peter Gojowczyk
Mikhail Kukushkin
Robin Haase
Stan Wawrinka
Benoit Paire
Ernests Gulbis
Marius Copil
Jo-Wilfried Tsonga
Thomas Fabbiano