Serena Williams says she is at the start of a "long comeback" after losing 6-3 2-6 6-3 to Czech Petra Kvitova in Cincinnati.

Garbine Muguruza is out of the second round to Lesia Tsurenko in Cincinnati.

 

The defending champion, lost 2-6 6-4 6-4.

Naomi Broady's bad form continues. Lost in 3 sets to Canadian wildcard Rebecca Marino.

Davis Cup set to be reformed:

 

https://www.bbc.co.uk/sport/tennis/45210996

The sad reason behind Serena's worst defeat of her career. She found out minutes before her match that the man convicted of killing her half-sister in 2003 had been released on parole.

 

https://www.bbc.co.uk/sport/tennis/45216396

Well done Novak. Completes his set of all the masters events now.

Kyle Edmund has progressed to the last 16 of the Winston-Salem Open with a straight-set win over Argentina's Leonardo Mayer.

US Open Women's Singles Seeds

 

1. Simona Halep, Romania

2. Caroline Wozniacki, Denmark

3. Sloane Stephens, United States

4. Angelique Kerber, Germany

5. Petra Kvitova, Czech Republic

6. Caroline Garcia, France

7. Elina Svitolina, Ukraine

8. Karolina Pliskova, Czech Republic

9. Julia Goerges, Germany

10. Jelena Ostapenko, Latvia

11. Daria Kasatkina, Russia

12. Garbiñe Muguruza, Spain

13. Kiki Bertens, Netherlands

14. Madison Keys, United States

15. Elise Mertens, Belgium

16. Venus Williams, United States

17. Serena Williams, United States

18. Ashleigh Barty, Australia

19. Anastasija Sevastova, Latvia

20. Naomi Osaka, Japan

21. Mihaela Buzarnescu, Romania

22. Maria Sharapova, Russia

23. Barbora Strycova, Czech Republic

24. CoCo Vandeweghe, United States

25. Daria Gavrilova, Australia

26. Aryna Sabalenka, Belarus

27. Anastasia Pavlyuchenkova, Russia

28. Anett Kontaveit, Estonia

29. Dominika Cibulkova, Slovakia

30. Carla Suarez Navarro, Spain

31. Magdalena Rybarikova, Slovakia

32. Maria Sakkari, Greece

US Open Men’s Singles Seeds

1. Rafael Nadal, Spain

2. Roger Federer, Switzerland

3. Juan Martin del Potro, Argentina

4. Alexander Zverev, Germany

5. Kevin Anderson, South Africa

6. Novak Djokovic, Serbia

7. Marin Cilic, Croatia

8. Grigor Dimitrov, Bulgaria

9. Dominic Thiem, Austria

10. David Goffin, Belgium

11. John Isner, United States

12. Pablo Carreno Busta, Spain

13. Diego Schwartzman, Argentina

14. Fabio Fognini, Italy

15. Stefanos Tsitsipas, Greece

16. Kyle Edmund, Great Britain

17. Lucas Pouille, France

18. Jack Sock, United States

19. Roberto Bautista Agut, Spain

20. Borna Coric, Croatia

21. Kei Nishikori, Japan

22. Marco Cecchinato, Italy

23. Hyeon Chung, South Korea

24. Damir Dzumhur, Bosnia and Herzegovina

25. Milos Raonic, Canada

26. Richard Gasquet, France

27. Karen Khachanov, Russia

28. Denis Shapovalov, Canada

29. Adrian Mannarino, France

30. Nick Kyrgios, Australia

31. Fernando Verdasco, Spain

32. Filip Krajinovic, Serbia

No. 2 seed Caroline Wozniacki will be taking on 2011 champion Samantha Stosur in Round 1 of the US Open.

Simona Halep becomes the first top-seeded woman to lose in the US Open first round, falling to a 6-2 6-4 defeat against Kaia Kanepi.

That's a big shock.

Murray does win his opening match but Verdasco should be a much tougher test...

Both Kyle Edmund and Heather Watson out in the first round but Cameron Norrie through to the second round.

Johanna Konta is out in the first round after losing in straight sets to sixth seed Caroline Garcia.

British representation has been an absolute embarrassment in this tournament. Murray's is understandable having come back from an long injury layoff but the likes of Konta & Watson - na, cheerio.

The officials aren't doing too well this week what with an umpire encouraging Kyrgios to try in the match and the Cornet top incident.

The Cornet incident was ridiculous & rightly widely condemned - crazy reason to give a code violation.

 

As for Kyrgios? Well nothing new there...

Serena and Venus will play each other tonight - they're due to start play at midnight BST. I'm sure it will be a great match although it feels far too early in the competition. Unless I'm mistaken, it will be their first match on opposite sides of the net since Serena beat Venus in the 2017 Australian Open final?

 

Edit: They played each other at Indian Wells in March. Venus won in straight sets in the third round.

Should be an intriguing match between the Williams sisters as always. Anyone watched Amazon Prime's coverage of it at all?