Day 12: Zheng the final test in Sabalenka title defence, all set for men’s semis

Zheng Qinwen is a step away from replicating Li Na’s history-making feat of 2014 following her straight-sets win over qualifier Dayana Yastremka, standing in her way is defending champion Aryna Sabalenka who ended the run of Coco Gauff at the second last hurdle — our experts Josh Eagle and Simon Rea dissect the match, and preview the men’s semifinal between ATP Finals rivals Novak Djokovic and Jannik Sinner, we look back at the career of Evonne Goolagong Cawley on the 50th anniversary of her maiden Australian Open title, and Billie Jean King reveals how the “changing of the guard” is an important concept in the evolution of tennis at the AO Inspirational Series. See omnystudio.com/listener for privacy information.