The third day of action at the Dubai Duty Free Tennis Championships focuses on the second round, with all the top seeded players in action. World No 1 Naomi Osaka, playing for the first time since her Australian Open win, kicks off the night session against Kristina Mladenovic. Defending champion Elina Svitolina, and past winners Petra Kvitova and Simona Halep, are all in action on Centre Court, with Kvitova up against fellow Czech Katerina Siniakova in the opening match of the day at 11am. [denotes seeding] <strong>Starts at 11am:</strong> Petra Kvitova [2] v Katerina Siniakova<br/> Elina Svitolina [6] v Ons Jabeur<br/> Simona Halep [3] v Eugenie Bouchard<br/> Angelique Kerber [5] v Dalila Jakupovic <strong>Not before 7pm:</strong> Naomi Osaka [1] v Kristina Mladenovic<br/> Karolina Pliskova [4] v Dominika Cilbulkova <strong>Starts at midday:</strong> Kiki Bertens [7] v Viktoria Kuzmova<br/> Garbine Muguruza [12] v Saisai Zheng<br/> Lesia Tsurenko v Lin Zhu<br/> Aryna Sabalenka [8] v Ivana Jorovic <strong>Starts at midday</strong>: Aliaksandra Sasnovich v Su-Wei Hseish<br/> Alison Riske v Alize Cornet<br/> Caroline Garcia [14] v Jennifer Brady <strong>Starts at midday:</strong> Daria Kasatkina [11] v Sofia Kenin<br/> Carla Suarez Navarro v Shuai Zhang<br/> Stefanie Voegele v Belinda Benic