Australian Open: ailing Novak Djokovic struggles into the round of 16, Felix Auger-Aliassime wins the Canadian duel

Novak Djokovic is in the round of 16 of the Australian Open after a strange performance, the Serb struggled to a five-set success against Taylor Fritz . Also in round four is Felix Auger-Aliassime , who surprisingly won the Canadian duel with Denis Shapovalov .