Stan Wawrinka (SUI) [5] - Hyeon Chung (KOR)
Ruben Bemelmans (BEL) - Jack Sock (USA) [28]
Viktor Troicki (SRB) [22] - Rajeev Ram (USA)
Aljaz Bedene (GBR) - Donald Young (USA)
Kevin Anderson (RSA) [15] - Austin Krajicek (USA)
Denis Istomin (UZB) - Dominic Thiem (AUT) [20]
Thomaz Bellucci (BRA) [30] - Yoshihito Nishioka (JPN) [q]
Adrian Mannarino (FRA) - Andy Murray (GBR) [3]
Tomas Berdych (CZE) [6] - Jurgen Melzer (AUT) [q]
Nicolas Mahut (FRA) - Guillermo Garcia-Lopez (ESP) [31]
Bernard Tomic (AUS) [24] - Lleyton Hewitt (AUS)
Robin Haase (NED) - Richard Gasquet (FRA) [12]
John Isner (USA) [13] - Mikhail Youzhny (RUS)
Jiri Vesely (CZE) - Ivo Karlovic (CRO) [21]
Philipp Kohlschreiber (GER) [29] - Lukas Rosol (CZE)
Steve Darcis (BEL) - Roger Federer (SUI) [2]