Jan 20 (Reuters) - Highlights of the ‌third day at the Australian Open on Tuesday (times GMT):

0020 PLAY UNDERWAY

The ‌main showcase courts at Melbourne Park were in action, with ‌Madison Keys taking on Oleksandra Oliynykova at the Rod Laver Arena as she started her defence of her first Grand Slam title. And Jannik Sinner kicks off his campaign for a ‍third consecutive Australian Open title against Hugo Gaston.