Carlos Alcaraz becomes the youngest men’s World No.1 following his sensational breakthrough triumph over Casper Ruud, Iga Swiatek adds a third major title to her growing swag by defeating Ons Jabeur — our panel of experts discuss the major storylines of the US Open, Ajla Tomljanovic tells how she dreamed up the win that ended Serena Williams’ career, rising star Rinky Hijikata reflects on his Grand Slam main draw debut in which he took a set off Rafael Nadal, and Storm Sanders and John Peers claim the mixed doubles title on their first tournament together.