In the Australian Open quarterfinals on Tuesday, Jannik Sinner faces Alex de Minaur.In his most recent match on Sunday, Sinner took down Holger Vitus Nodskov Rune in four sets, 6-3, 3-6, 6-3, 6-2,

It's the biggest match of Alex de Minaur's career - an Australian Open quarter-final against reigning champion and world No. 1 Jannik Sinner.De Minaur has never been to the last four in a major and will have to overcome an 0-9 head-to-head record against the Italian champion.

The quarterfinals are underway at Melbourne Park, as rumours abound about Jannik Sinner's health ahead of his clash with Alex de Minaur. Follow live.