Awaiting in the last four will be either American 21st seed Ben Shelton or the unseeded Italian Lorenzo Sonego ... not shake hands with Russia's Veronika Kudermetova after her fourth-round ...

A second Italian joined Sinner in the quarterfinals when 55th-ranked Lorenzo Sonego got that far at a major tournament for the first time by ending the run of American qualifier Learner Tien 6-2 ...

But American teenage qualifier Learner Tien’s fairytale run is over after he suffered a thigh problem in a four-set defeat to Italy’s Lorenzo ... Svitolina beat Veronika Kudermetova -- then ...

But American teenage qualifier Learner Tien's fairytale run is over after he suffered a thigh problem in a four-set defeat to Italy's Lorenzo Sonego in Melbourne ... Ukraine's Elina Svitolina beat ...

Djokovic has been at the centre of controversy before at the Australian Open, notably in 2022 when he was deported on the eve ...