Zverev's despair as he lost his third Grand Slam final was evident as he sat down in his chair after congratulating Sinner, but his discomfort was not helped by a member of the crowd screaming abuse in his direction as he stepped up to the microphone to address the sell-out audience on Rod Laver Arena.

The fan in the crowd shouted loudly and clearly: "Australia believes Olya and Brenda."

She was referencing domestic abuse allegation made against Zverev, first in 2020 by Olga Sharypova (also known as Olya) and then in 2023 by Brenda Patea, who has a daughter with the world No 2.

Sharypova did not press charges and the the ATP Tour opted not to take any action against Zverev after a two-year investigation.

The Patea went to court and last June Zverev agreed to pay 200,000 euro in a settlement agreement, while still strenuously denying both sets of claims.

After that case, a statement was released that read: "I can confirm that the court has terminated the proceedings with the consent of the public prosecution office.

"The defendant must pay an amount of 200,000 euros. Of this, 150,000 euros go to the state treasury, the rest goes to non-profit organisations.

"The decision is not a verdict and it does not involve a decision about guilt or innocence.

"One decisive factor for the court decision was that the witness has expressed her wish to end the trial. The defendant agreed to the termination of the case."

Zverev suggested he was keen to avoid any more reference to the domestic abuse claims after the Patea was settled, but this incident in Melbourne will put it back on the tennis agenda.

He was asked about the heckler in his post-match press conference was keen to avoid adding to the story.

"I believe there are no more accusations. There haven't been for, what, nine months now," said a steely-faced Zverev.

"Good for her. I think she was the only one in the stadium who believed anything in that moment. If that's the case, good for her. I think I've done everything I can, and I'm not about to open that subject again."

Zverev was emotional as he came up short in a Grand Slam final once again and he insisted he would do all he could to bounce back and finally win one of the big prizes in tennis.

"It sucks standing here next to this thing and not being able to touch it," he said looking at the Australian Open trophy.

"Congratulations Jannik, you're the best player in the world by far. I was hoping I could be more of a competitor today but you're just too good.

"We're trying to do all the right work, I'm just not good enough - it's as simple as that."

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