Defending champion Jannik Sinner has moved into the quarterfinals at the Australian Open after beating Holger Rune in a match ...

First came the medical timeouts, one each for Jannik Sinner and Holger Rune with the temperature above 90 degrees Fahrenheit ...

World No. 1 Jannik Sinner fought through blistering heat and an undisclosed ailment to defeat Holger Rune 6-3, 3-6, 6-3, 6-2 ...