Australian Open: Novak Djokovic forced to battle to get better of Frances Tiafoe

Meanwhile, former champion Stan Wawrinka missed three match points in a dramatic five-set loss to Hungary’s Marton Fucsovics

Novak Djokovic battled through in four sets. Picture: Rick Rycroft/AP

Novak Djokovic came through his first major test at the Australian Open against American powerhouse Frances Tiafoe.

The world number one, bidding for an unprecedented ninth Melbourne title, had dropped only six games as he flattened Jeremy Chardy in round one.