The Australian Open first round continues with fifth seed Daniil Medvedev, home favourite Alex de Minaur and Italy's Jasmine Paolini among those in action, while Taylor Fritz battles Jenson Brooksby in one of three all-American clashes on Tuesday.

Join our writers for updates on day two of the year’s first grand slam at Melbourne Park.   02:53 The standard of play in this fourth set is higher than the three before it with Tsitsipas liberated by his rage and Michelsen fighting fire with fire.

When Carlos Alcaraz is on court for a training session, perhaps working on his newly revamped service motion, he's doing so to buttress a game already good enough to claim four Grand Slam titles.