MADRID, Spain – All of the world’s best players have been confirmed to attend the 16th Mutua Madrid Open, which starts on May 6.

With the exception of the injured Petra Kvitova, the field is as strong as it possibly could be according to the WTA rankings – with the returning Maria Sharapova also granted a wildcard along with four other players, to be announced.

To complete the 64-player main draw for the Mutua Madrid Open, eight players will come through the qualifying stages.

Fifth seeded Simona Halep is the reigning champion in a recent roll of honour that has seen Serena Williams triumph twice (2012, 2013) and Sharapova in 2014. The tournament will mark Williams’ return to action, the former champion having struggled with a knee injury since winning the Australian Open.

The @WTA Stars ⭐️ are coming back to Madrid! ☺️. Complete list of players: https://t.co/npBfnToFP5 ?? pic.twitter.com/mYiZUTRz4x

— Mutua Madrid Open (@MutuaMadridOpen) March 28, 2017

Kvitova is also a two-time winner of the event and tournament director Manolo Santana used the announcement as an opportunity to dedicate a few words to the absent champion.

“I would like to send my best wishes and affection to Petra Kvitova, who is unable to play this year for reasons I am sure you are all aware of,” he said. “I have special admiration for Petra’s capacity to overcome adversity and I would love to see her back here fighting for her third title next year.”

The players registered for the Mutua Madrid Open are:

1. Angelique Kerber
2. Serena Williams
3. Karolina Pliskova
4. Dominika Cibulkova
5. Simona Halep
6. Garbiñe Muguruza
7. Svetlana Kuznetsova
8. Agnieszka Radwanska
9. Madison Keys
10. Elina Svitolina
11. Johanna Konta
12. Venus Williams
13. Elena Vesnina
14. Caroline Wozniacki
15. Timea Bacsinszky
16. Anastasia Pavlyuchenkova
17. Kristina Mladenovic
18. Samantha Stosur
19. Barbora Strycova
20. Kiki Bertens
21. Coco Vandeweghe
22. Caroline Garcia
23. Carla Suárez Navarro
24. Anastasija Sevastova
25. Daria Gavrilova
26. Timea Babos
27. Irina-Camelia Begu
28. Mirjana Lucic-Baroni
29. Roberta Vinci
30. Ana Konjuh
31. Yulia Putintseva
32. Zhang Shuai
33. Lauren Davis
34. Ekaterina Makarova
35. Lucie Safarova
36. Katerina Siniakova
37. Alison Riske
38. Laura Siegemund
39. Monica Puig
40. Lesia Tsurenko
41. Daria Kasatkina
42. Peng Shuai
43. Alizé Cornet
44. Monica Niculescu
45. Christina McHale
46. Julia Goerges
47. Naomi Osaka
48. Yaroslava Shvedova
49. Misaki Doi
50. Kristyna Pliskova
51. Viktorija Golubic