Updated: July 12, 11:50 a.m.
Several former Western & Southern Open champions are coming back this summer.Tournament organizers say the current list of entrants "includes all players in the Top 37 of the WTA (Women's Tennis Association) Rankings," such as Serena Williams, Karolina Pliskova and Garbiñe Muguruza, as well as reigning No. 1 Simona Halep.
The men's field includes seven-time champion Roger Federer, along with Rafael Nadal, Grigor Dimitrov, Marin Cilic, and Novak Djokovic.
In total, 56 women will compete in the WTA Premier 5 and 56 men will play in the ATP Masters 1000, which runs August 11-19in Mason.
"This is a very strong field with all of the top WTA players having entered," says Tournament Director Andre Silva in a statement. "The past 18 months have really shown the depth of the WTA with so many different players coming through to win big titles."
On the men's side, there will be plenty of "young talent," organizers say.
"It is an intriguing time on the tour as these younger players are pushing to make their breakthroughs at the bigger events, but the veteran players are not ready yet to give up their status at the top," Silva says.
Here are the initial 39 WTA entries:
Rank Player (Country) Age • Quick Facts
1) Simona Halep (Romania) 26 • 2018 French Open champion, 2017 W&S Open finalist
2) Caroline Wozniacki (Denmark) 27 • 2018 Australian Open champion
3) Garbiñe Muguruza (Spain) 24 • 2017 Wimbledon champion, 2017 W&S Open champion
4) Sloane Stephens (USA) 25 • 2017 US Open champion, 2017 W&S Open semifinalist
5) Elina Svitolina (Ukraine) 23 • Winner of three WTA titles in 2018, 23-year-old is youngest in Top 10
6) Caroline Garcia (France) 24 • In 2017 won titles at Premier 5 Wuhan and Premier Mandatory Beijing
7) Petra Kvitova (Czech Republic) 26 • Winner of WTA-leading five titles in 2018
8) Karolina Pliskova (Czech Republic) 26 • 2016 W&S Open champion
9) Venus Williams (USA) 38 • Seven-time Major champion
10) Angelique Kerber (Germany) 30 • Two-time Major champion, Two-time W&S Open finalist
11) Madison Keys (USA) 23 • 2017 US Open finalist, 2018 French Open semifinalist
12) Jelena Ostapenko (Latvia) 21 • 2017 French Open champion
13) Julia Goerges (Germany) 29 • 2017 W&S Open quarterfinalist
14) Daria Kasatkina (Russia) 21 • Finalist at Premier Mandatory Indian Wells in 2018
15) Elise Mertens (Belgium) 22 • Winner of three titles in 2018
16) CoCo Vandeweghe (USA) 26 • 2017 US Open semifinalist
17) Ashleigh Barty (Australia) 22 • Nominee for WTA June Player of the Month
18) Naomi Osaka (Japan) 20 • Winner of Premier Mandatory Indian Wells in 2018
19) Magdalena Rybarikova (Slovakia) 29 • Three of four career titles have been in US
20) Kiki Bertens (Netherlands) 26 • Winner of three titles since last May
21) Anastasia Sevastova (Latvia) 28 • 2016 and 2017 US Open quarterfinalist
22) Maria Sharapova (Russia) 31 • Five-time Major champion, 2011 W&S Open champion
23) Barbora Strycova (Czech Republic) 32 • Reached one semifinal and two quarterfinals in 2018
24) Johanna Konta (Great Britain) 27 • 2017 W&S Open quarterfinalist
25) Daria Gavrilova (Australia) 24 • Two-time semifinalist in 2018
26) Carla Suarez Navarro (Spain) 29 • 2018 Australian Open quarterfinalist
27) Anett Kontaveit (Estonia) 22 • Two-time semifinalist in 2018
28) Mihaela Buzarnescu (Romania) 30 • Two-time finalist in 2018
29) Anastasia Pavlyuchenkova (Russia) 26 • Three titles since last April
30) Agnieszka Radwanska (Poland) 28 • Winner of 20 career WTA titles
31) Zhang Shuai (China) 29 • Reached quarterfinals or better in three 2018 events
32) Aryna Sabalenka (Belarus) 20 • Two-time finalist in 2018
33) Dominika Cibulkova (Slovakia) 29 • 2016 WTA Finals champion
34) Lesia Tsurenko (Ukraine) 29 • Winner of one title in 2018
35) Ekaterina Makarova (Russia) 30 • Six-time Major quarterfinalist
36) Irina-Camelia Begu (Romania) 27 • Two-time semifinalist in 2018
37) Maria Sakkari (Greece) 22 • Semifinalist at Premier 5 Wuhan in 2017
62) Kristina Mladenovic (France) 25 • Five-time finalist in last two seasons
181) Serena Williams (USA) 36 • 23-time Major champion, Two-time W&S Open champion
Here are theinitial 44 ATP entries:
Rank Player (Country) Age • Quick Facts
1) Rafael Nadal (Spain) 32 • 17-time Major champion, 2013 W&S Open champion
2) Roger Federer (Switzerland) 36 • 20-time Major champion, Seven-time W&S Open champion
3) Alexander Zverev (Germany) 21 • Three-time ATP Masters 1000 title winner
4) Juan Martin del Potro (Argentina) 29 • 2009 US Open champion, Winner of 22 ATP titles
5) Marin Cilic (Croatia) 29 • 2014 US Open champion, 2016 W&S Open champion
6) Grigor Dimitrov (Bulgaria) 27 • 2017 ATP World Tour Finals champion, 2017 W&S Open champion
7) Dominic Thiem (Austria) 24 • 2018 French Open finalist, 2017 W&S Open quarterfinalist
8) Kevin Anderson (South Africa) 32 • 2017 US Open finalist, 2018 Wimbledon semifinalist
9) David Goffin (Belgium) 27 • 2017 ATP World Tour Finals runner-up
10) John Isner (USA) 33 • 2018 Wimbledon semifinalist, 2013 W&S finalist, 2017 semifinalist
11) Diego Schwartzman (Argentina) 25 • 2017 US Open and 2018 French Open quarterfinalist
12) Pablo Carreno Busta (Spain) 26 • 2017 US Open semifinalist
13) Sam Querrey (USA) 30 • 2017 Wimbledon semifinalist and US Open quarterfinalist
14) Roberto Bautista Agut (Spain) 30 • Winner of eight ATP titles
15) Jack Sock (USA) 25 • 2017 ATP Masters 1000 Paris champion
16) Fabio Fognini (Italy) 31 • Winner of six ATP titles
17) Kyle Edmund (Great Britain) 23 • 2018 Australian Open semifinalist
18) Nick Kyrgios (Australia) 23 • 2017 W&S Open finalist
19) Lucas Pouille (France) 24 • 2016 Wimbledon and US Open quarterfinalist
20) Borna Coric (Croatia) 21 • 2013 US Open junior champion, 2016 W&S Open quarterfinalist
21) Novak Djokovic (Serbia) 31 • Twelve-time Major champion, Five-time W&S Open finalist
22) Hyeon Chung (Korea) 22 • 2018 Australian Open semifinalist, 2017 ATP Next Gen champion
23) Damir Dzumhur (Bosnia-Herzegovina) 26 • All three career titles have come in last nine months
24) Tomas Berdych (Czech Republic) 32 • Two-time W&S Open semifinalist
25) Denis Shapovalov (Canada) 19 • Named 2017 ATP Star of Tomorrow and Most Improved Player
26) Adrian Mannarino (France) 30 • 2017 ATP Masters 1000 Montreal quarterfinalist
27) Philipp Kohlschreiber (Germany) 34 • Five-time ATP Masters 1000 quarterfinalist
28) Kei Nishikori (Japan) 28 • 2014 US Open finalist, Four-time ATP Masters 1000 finalist
29) Marco Cecchinato (Italy) 25 • 2018 French Open semifinalist
30) Filip Karjinovic (Serbia) 26 • 2017 ATP Masters 1000 Paris finalist
31) Richard Gasquet (France) 32 • Three-time Major semifinalist
32) Milos Raonic (Canada) 27 • Two-time W&S Open semifinalist
33) Andrey Rublev (Russia) 20 • As a teenager, 2017 US Open quarterfinalist
34) Fernando Verdasco (Spain) 34 • Winner of seven career titles and more than 500 matches
35) Stefano Tsitsipas (Greece) 19 • 2016 Junior No. 1, Highest ranked Greek player in history
36) Leonardo Mayer (Argentina) 31 • Owned an 11-match Davis Cup winning streak (2013-16)
37) David Ferrer (Spain) 36 • 2014 W&S Open finalist and 2017 semifinalist
38) Albert Ramos-Vinolas (Spain) 30 • 2017 ATP Masters 1000 Monte-Carlo finalist
39) Peter Gojowczyk (Germany) 28 • Has reached all three ATP finals in last 10 months
40) Karen Khachanov (Russia) 22 • Winner of two ATP titles
41) Mischa Zverev (Germany) 30 • 2017 Australian Open quarterfinalist
42) Steve Johnson (USA) 28 • Winner of three ATP titles, Owned 72-match winning streak at USC
43) Robin Haase (Netherlands) 31 • 2017 ATP Masters 1000 Montreal quarterfinalist
44) Gael Monfils (France) 31 • Two-time Major semifinalist, Three-time Masters 1000 finalist
