Alex Zverev has subdued Carlos Alcaraz and booked a last four date with Daniil Medevedev who won a tug-of-war against Hubert Hurkacz en route to his third semifinal in Melbourne — experts Pippa Horn and Simon Rea discuss how he did it and preview the women’s semifinal between US Open champion Coco Gauff and AO defending champion Aryna Sabalenka, Zheng Qinwen and qualifier Dayana Yastremska extend their best previous Grand Slam results by winning their quarterfinals, and have we seen the last of Nick Kyrgios the player?