Djokovic challenges Australian Open heckler before surviving Popyrin scare, Novak Djokovic

Novak Djokovic survived a scare for the second match in succession to reach the third round of the Australian Open

Novak Djokovic - The Irish Times

Novak Djokovic challenges Australian Open heckler in testy second round - NZ Herald

Djokovic survives Popyrin scare to reach third round - CNA

US Open 2018: Cilic beats Goffin, Djokovic and Keys safely through – as it happened, US Open Tennis 2018

Novak Djokovic - The Irish Times

Novak Djokovic caught up in ugly crowd drama amid Australian Open scare - Yahoo Sport

Novak Djokovic - The Irish Times

Novak Djokovic Confronted A Heckler At The Australian Open

Novak Djokovic News, Schedule and Ranking

Novak Djokovic, Sport