Novak Djokovic and Serena Williams in action during their respective matches in Austrailian Open at Melbourne. By Daily Excelsior - January 17, 2017 Share FacebookTwitterWhatsAppPinterestLinkedinTelegramEmailTumblrReddItPrint Novak Djokovic and Serena Williams in action during their respective matches in Austrailian Open at Melbourne. Novak Djokovic and Serena Williams in action during their respective matches in Austrailian Open at Melbourne.