Novak Djokovic defeated Botic van de Zandschulp in straight sets 6-3, 6-4, 7-6 (7-4) at the Australian Open 2026, marking his 400th Grand Slam match win. The Serbian showed composure in a tense third-set tiebreak to secure his place in the fourth round. Zandschulp fought hard but couldn't overcome Djokovic's dominant serving and clutch play.