By contrast, Naomi Osaka posted another 6-3, 6-3 scoreline in the third round over Mihaela Buzarnescu to become the only player to win two straight-set matches on Thursday (Getty)
May 17, 2019
A Wednesday washout at the Internazionali BNL d'Italia meant an action-packed Thursday - and with 20 matches completed to set the quarterfinals, the drama didn't stop at any point. Look back on the best pictures from the day here.
Victoria Azarenka - Rome 2019 - Getty
May 16, 2019
Victoria Azarenka progressed to her first Internazionali BNL d'Italia quarterfinal since 2015 after Garbiñe Muguruza was forced to retire due to a left thigh injury while trailing in their third-round clash.
Garbiñe Muguruza, Rome 2019 (Getty)
May 16, 2019
Garbiñe Muguruza overcame Danielle Collins in three sets in the second round of the Internazionali BNL d'Italia to set up a third-round clash of former World No.1s with Victoria Azarenka later today.
Garbiñe Muguruza, Rome 2019 (Getty)
May 13, 2019
Garbiñe Muguruza won her first match since winning the title in Monterrey over Zheng Saisai at the Internazionali BNL d'Italia.
Serena Williams, Indian Wells 2019 (©Jimmie48/WTA)
May 12, 2019
Former champions Serena and Venus Williams join fellow former World No.1 players Victoria Azarenka and Garbiñe Muguruza in action on Monday, as the Internazionali BNL d'Italia kicks off play.
Petra Martic, 2019 Mutua Madrid Open (Getty Images)
May 5, 2019
Recent Istanbul champion Petra Martic won her sixth straight match, knocking Spanish No.1 Garbiñe Muguruza out of the Mutua Madrid Open in straight sets.
Naomi Osaka - Stuttgart 2019 - Getty
May 3, 2019
World No.1 Naomi Osaka will face 2016 finalist Dominika Cibulkova in the first round of the 2019 Mutua Madrid Open, while former World No.1s Angelique Kerber and Garbiñe Muguruza are set for a second-round showdown and Petra Kvitova opens her title defence against Sofia Kenin.
Carla Suárez Navarro (Getty Images)
April 20, 2019
Spain and Belgium are level at one point apiece after a thrilling first day of Fed Cup World Group Playoff action, with Kirsten Flipkens and Carla Suárez Navarro claiming crucial victories.
Australia's Ashleigh Barty celebrates beating Madison Keys in straight sets (Getty)
April 15, 2019
France host Romania and Australia host Belarus in this week's Fed Cup semifinals, while the World Group play-offs find the Czech Republic battling Canada and Latvia taking on Germany.
Garbiñe Muguruza, 2019 Monterrey (MC Agencia)
April 7, 2019
No.2 seed Garbiñe Muguruza successfully executed a title defense at the Abierto GNP Seguros, claiming the first set of the championship match before Victoria Azarenka retired due to injury.
Garbiñe Muguruza, 2019 Monterrey (MC Agencia)
April 7, 2019
In a battle between former World No.1 players and two-time Grand Slam champions, Garbiñe Muguruza and Victoria Azarenka will face off for the Abierto GNP Seguros title.
Garbiñe Muguruza, Monterrey 2019 (MC Agencia)
April 6, 2019
No.2 seed Garbiñe Muguruza advanced to her second straight final at the Abierto GNP Seguros with a straight-sets win over No.8 Magdalena Rybarikova.