After getting overrun by Jannik Sinner 6-3, 7-6 (4), 6-3 in the men’s singles final Saturday night to give the world No. 1 player a back-to-back victory in Melbourne, fans called out Zverev for his dark past, referencing two of the German player’s ex-girlfriend’s who have accused him of domestic abuse.

Alexander Zverev was heckled from the stands during the awards ceremony after the Australian Open men’s final. A protester in the crowd repeatedly screamed out: “Australia believes Olga and Brenda.”Many tennis fans in the stands and a number of those watching at home unfamiliar with the background to the outburst would have wondered what the commotion was about.

World No. 2 Alexander Zverev was forced to address previous domestic abuse allegations made against him after he was heckled by a member of the crowd after the Australian Open final on Sunday.