Several players have expressed doubt about their participation, with Rafael Nadal being the biggest name in the men's draw who has decided not to play at this year's event. The tournament organizers have released a provisional entry list of players, with a few notable absences.

Australian Nick Kyrgios has already announced he will be skipping the event. However, World No.9 Gael Monfils and 2016 champion Stan Wawrinka were among the notable absentees on the list. Neither has confirmed or denied their participation, but there should be more official statements in the coming weeks.

1 DJOKOVIC, Novak SRB 1
2 THIEM, Dominic AUT 3
3 MEDVEDEV, Daniil RUS 5
4 TSITSIPAS, Stefanos GRE 6
5 ZVEREV, Alexander GER 7
6 BERRETTINI, Matteo ITA 8
7 GOFFIN, David BEL 10
8 BAUTISTA AGUT, Roberto ESP 12
9 SCHWARTZMAN, Diego ARG 13
10 RUBLEV, Andrey RUS 14
11 KHACHANOV, Karen RUS 15
12 SHAPOVALOV, Denis CAN 16
13 GARIN, Cristian CHI 18
14 DIMITROV, Grigor BUL 19
15 AUGER-ALIASSIME, Felix CAN 20
16 ISNER, John USA 21
17 PAIRE, Benoit FRA 22
18 LAJOVIC, Dusan SRB 23
19 FRITZ, Taylor USA 24
20 CARRENO BUSTA, Pablo ESP 25
21 DE MINAUR, Alex AUS 26
22 BASILASHVILI, Nikoloz GEO 27
23 EVANS, Daniel GBR 28
24 HURKACZ, Hubert POL 29
25 RAONIC, Milos CAN 30
26 NISHIKORI, Kei JPN 31
27 KRAJINOVIC, Filip SRB 32
28 CORIC, Borna CRO 33
29 STRUFF, Jan-Lennard GER 34
30 PELLA, Guido ARG 35
31 RUUD, Casper NOR 36
32 CILIC, Marin CRO 37
33 MANNARINO, Adrian FAR 38
34 OPELKA, Reilly USA 39
35 RAMOS-VINOLAS, Albert ESP 41
36 HUMBERT, Ugo FRA 42
37 MILLMAN, John AUS 43
38 EDMUND, Kyle GBR 44
39 QUERREY, Sam USA 45
40 SONEGO, Lorenzo ITA 46
41 KECMANOVIC, Miomir SRB 47
42 NISHIOKA, Yoshihito JPN 48
43 GASQUET, Richard FRA 50
44 BUBLIK, Alexander RUS 51
45 VERDASCO, Fernando ESP 52
46 ANDUJAR, Pablo ESP 53
47 SIMON, Gilles FRA 54
48 SANDGREN, Tennys USA 55
49 LOPEZ, Feliciano ESP 56
50 PAUL, Tommy USA 57
51 CHARDY, Jeremy FRA 59
52 CUEVAS, Pablo URU 60
53 BEDENE, Aljaz SLO 61
54 LONDERO, Juan Ignacio ARG 62
55 JOHNSON, Steve USA 63
56 THOMPSON, Jordan AUS 64
57 VESELY, Jiri CZE 65
58 SOUSA, Joao POR 66
59 ALBOT, Radu MDA 67
60 YMER, Mikael SWE 68
61 GERASIMOV, Egor BLR 69
62 KWON, Soonwoo KOR 70
63 LU, Yen-Hsun TPE PR71
64 BERANKIS, Ricardas LTU 72
65 SINNER, Jannik ITA 73
66 KOHLSCHREIBER, Philipp GER 74
67 MOUTET, Corentin FRA 75
68 BALAZS, Attila HUN 76
69 NORRIE, Cameron GBR 77
70 DELBONIS, Federico ARG 78
71 MAGER, Gianluca ITA 79
72 DJERE, Laslo SRB 80
73 TIAFOE, Frances USA 81
74 MONTEIRO, Thiago BRA 82
75 DUCKWORTH, James AUS 83
76 MCDONALD, Mackenzie USA PR84
77 FUCSOVICS, Marton HUN 84
78 NOVAK, Dennis AUT 85
79 TRAVAGLIA, Stefano ITA 86
80 SUGITA, Yuichi JPN 87
81 SEPPI, Andreas ITA 88
82 UCHIYAMA, Yasutaka JPN 90
83 KUKUSHKIN, Mikhail KAZ 91
84 KOEPFER, Dominik GER 92
85 POSPISIL, Vasek CAN 93
86 DELLIEN, Hugo BOL 94
87 BARRERE, Gregoire FRA 95
88 MARTIN, Andrej SVK 96
89 DAVIDOVICH FOKINA, Alejandro ESP 97
90 HARRIS, Lloyd RSA 98
91 CARBALLES BAENA, Roberto ESP 99
92 CARUSO, Salvatore ITA 100
93 RUUSUVUORI, Emil FIN 101
94 GIRON, Marcos USA 102
95 POPYRIN, Alexei AUS 103
96 CORIA, Federico ARG 104
97 MUNAR, Jaume ESP 105
98 MARTINEZ, Pedro ESP 106
99 DZUMHUR, Damir BIH 107
100 MAJCHRZAK, Kamil POL 108
101 GOMBOS, Norbert SVK 109
102 SOUSA, Pedro POR 110
103 KUDLA, Denis USA 111
104 DANIEL, Taro JPN 112
105 CECCHINATO, Marco ITA 113
106 SEYBOTH WILD, Thiago BRA 114
107 DONSKOY, Evgeny RUS 115
108 O'CONNELL, Christopher AUS 116
109 SOEDA, Go JPN 117
110 MAYER, Leonardo ARG 118
111 POLMANS, Marc AUS 119
112 SOCK, Jack USA PR119
113 JUNG, Jason TPE 120
114 LORENZI, Paolo ITA 121
115 KOVALIK, Jozef SVK 122
116 ANDERSON, Kevin RSA 123
117 KARLOVIC, Ivo CRO 124
118 GOJOWCZYK, Peter GER 125
119 KLAHN, Bradley USA 126
120 NAGAL, Sumit IND 127
121 MURRAY Andy GBR 129
122 BLANCH Ulises USA 243
123 CRESSY Maxime USA 165
124 KORDA Sebastian USA 204
125 KWIATKOWSKI Thai-Son USA 186
126 MMOH Michael USA 185
127 NAKASHIMA Brandon USA 222
128 WOLF J.J. USA 138
129 KRUEGER Mitchell USA 195
130 GAIO, Federico ITA 130

MAIN DRAW ALTERNATES
KUZNETSOV, Andrey RUS PR130
SAFWAT, Mohamed RGY 131
GUNNESWARAN, Prajnesh IND 132
STEBE, Cedrik-Marcel GER 133
BAGNIS, Facundo ARG 134