Top seeds Serena Williams and Novak Djokovic have started their title defences at the Australian Open with straight set victories. Williams, who is chasing her 22nd Grand Slam, defeated Italian Camila Giorgi 6-4, 7-5. It was the American’s first match since losing in the semi-final of the U.S. Open in September. But Williams says she needed those four months off.
Listen
Elsewhere, men’s world number one Djokovic beat the 19-year-old South Korean Hyeon Chung 6-3, 6-2, 6-4. Former champions Roger Federer and Maria Sharapova will hit the courts later.

Dubai to spotlight future of sport at World Sports Summit
Safeguarding rules bar 15-year-old Sooryavanshi from Indian dressing room
Top contender Sabalenka faces fresh scrutiny at Wimbledon as mental scars linger
Munoz strike sends Colombia into World Cup Round of 32
Qatar's sports minister, Madibo visit Canada's injured Kone
