RIO DE JANEIRO: 22-time Grand Slam champion Serena Williams will play her opening match against Australia's Daria Gavrilova at the Summer Olympic Games, which starts in Rio de Janeiro from August 5.

No.2 seed Angelique Kerber will open against Mariana Duque-Mariño, while No.3 seed Garbiñe Muguruza will begin her Olympic campaign against former World No.1 Jelena Jankovic, and No.4 seed Agnieszka Radwanska, Zheng Saisai. Jankovic's countrywoman Ana Ivanovic faces No.10 seed Carla Suárez Navarro to start the week, as well.

An battle of unseeded opponents features former Wimbledon finalist Eugenie Bouchard and former Australian Open semifinalist, Sloane Stephens. The winner could play Kerber in the second round.