Novak Djokovic and Serena Williams were seeded No. 1 in the upcoming 2015 US Open, which is scheduled to start on Monday in Flushing Meadows.

Djokovic, as expected, was seeded first in the men's draw as he is currently the top-ranked player in the world after winning the 2015 Australian Open and 2015 Wimbledon. He also finished second in the 2015 French Open.

Roger Federer, who won the Western & Southern Open in Cincinnati on Sunday, was seeded No. 2 behind Djokovic. The former world No. 1 tennis player, who was seeded for the 15th consecutive US Open, is still chasing his 18th Grand Slam title and his first since the 2012 Wimbledon.

British star Andy Murray was seeded third, while 2014 runner-up Kei Nishikori and Stan Wawrinka round of the top five. Two-time US Open champion Rafael Nadal was seeded No. 8 behind sixth-seeded Tomas Berdych and seventh-seeded David Ferrer.

In the women's side, Williams topped the list and it was an easy choice. The 33-year-old superstar has swept the first three Grand Slam titles this year and is looking to become the first player to win all four since Steffi Graf successfully took all Grand Slams in 1988, Sporting News reported.

Simona Halep, the 2014 French Open runner-up, was seeded No. 2 behind Williams. Maria Sharapova, Caroline Wozniacki and Petra Kvitova were ranked third, fourth and fifth, respectively.

Check the complete seeding below from the tournament's official website.

2015 US Open Men's Singles Seeds

  1. Novak Djokovic, Serbia
  2. Roger Federer, Switzerland
  3. Andy Murray, Great Britain
  4. Kei Nishikori, Japan
  5. Stan Wawrinka, Switzerland
  6. Tomas Berdych, Czech Republic
  7. David Ferrer, Spain
  8. Rafael Nadal, Spain
  9. Marin Cilic, Croatia
  10. Milos Raonic, Canada
  11. Gilles Simon, France
  12. Richard Gasquet, France
  13. John Isner, United States
  14. David Goffin, Belgium
  15. Kevin Anderson, South Africa
  16. Gael Monfils, France
  17. Grigor Dimitrov, Bulgaria
  18. Feliciano Lopez, Spain
  19. Jo-Wilfried Tsonga, France
  20. Dominic Thiem, Austria
  21. Ivo Karlovic, Croatia
  22. Viktor Troicki, Serbia
  23. Roberto Bautista Agut, Spain
  24. Bernard Tomic, Australia
  25. Andreas Seppi, Italy
  26. Tommy Robredo, Spain
  27. Jeremy Chardy, France
  28. Jack Sock, United States
  29. Philipp Kohlschreiber, Germany
  30. Thomaz Bellucci, Brazil
  31. Guillermo Garcia-Lopez, Spain
  32. Fabio Fognini, Italy

2015 US Open Women's Singles Seeds

  1. Serena Williams, United States
  2. Simona Halep, Romania
  3. Maria Sharapova, Russia
  4. Caroline Wozniacki, Denmark
  5. Petra Kvitova, Czech Republic
  6. Lucie Safarova, Czech Republic
  7. Ana Ivanovic, Serbia
  8. Karolina Pliskova, Czech Republic
  9. Garbiñe Muguruza, Spain
  10. Carla Suarez Navarro, Spain
  11. Angelique Kerber, Germany
  12. Belinda Bencic, Switzerland
  13. Ekaterina Makarova, Russia
  14. Timea Bacsinszky, Switzerland
  15. Agnieszka Radwanska, Poland
  16. Sara Errani, Italy
  17. Elina Svitolina, Ukraine
  18. Andrea Petkovic, Germany
  19. Madison Keys, United States
  20. Victoria Azarenka, Belarus
  21. Jelena Jankovic, Serbia
  22. Samantha Stosur, Australia
  23. Venus Williams, United States
  24. Sabine Lisicki, Germany
  25. Eugenie Bouchard, Canada
  26. Flavia Pennetta, Italy
  27. Alizé Cornet, France
  28. Irina-Camelia Begu, Romania
  29. Sloane Stephens, United States
  30. Svetlana Kuznetsova, Russia
  31. Anastasia Pavlyuchenkova, Russia
  32. Anna Karolina Schmiedlova, Slovakia

The complete schedule will be posted on this link on Thursday, while the draws will be available here. Fans can now get their 2015 US Open Tennis tickets through this link.