A falling feather leads to a fuming German, a teenager makes an instant impact, and it is double delight for Aussie doubles. Here are the five quick hits from day 10 of the Australian Open.

Jannik Sinner hopes to join Novak Djokovic and Alexander Zverev in the semi-finals of the Australian Open when he faces off against home favourite Alex De Minaur at the Rod Laver Arena this morning. Sinner has had a relatively easy time of things so far and avoided a potential stumbling block with a four-set victory over Holger Rune in the fourth round.

The stage is set for an entertaining day of quarterfinal action at the Australian Open with four intriguing matches on the slate at Melbourne Park. As always, we here at LWOT will be offering our predictions for every match – including all the action in the women’s singles draw – but who will secure their spot in the last four?