Tennis Videos Important to do prior homework - Djokovic Speaking after victory Matteo Berrettini in the ATP finals opener, Novak Djokovic said one of the keys to success is the preparation before the tourney. Team Sportstar 11 November, 2019 15:33 IST Team Sportstar 11 November, 2019 15:33 IST Naomi Osaka 'united by emotion' for Tokyo Olympics Rafael Nadal offers Red Cross support amid COVID-19 outbreak Nadal sends message of support to Spain's emergency services Indian Wells cancelled due to coronavirus concerns More Videos HIGHLIGHTS: Sabalenka dominates Kvitova to take Doha crown HIGHLIGHTS: Djokovic beats Tsitsipas to clinch Dubai crown WATCH: Kvitova battles past Barty to set up Sabalenka showdown in Doha WATCH: Djokovic survives Dubai semifinal scare against Monfils Qatar Open: Barty beats Muguruza to set up Kvitova semis clash Jabeur shocks Pliskova in front of raucous Doha crowd Tsitsipas looks back at three years on the ATP Tour Daniil Medvedev: 'I push myself to win tournaments'