Defending champion Jannik Sinner has moved into the quarterfinals at the Australian Open after beating Holger Rune in a match slowed down by medical timeouts for each player and a delay because the net got knocked loose. The No. 1-ranked Sinner beat No. 13 Rune 6-3, 3-6, 6-3, 6-2. That stretched Sinner’s winning streak to 18 tour-level matches dating back to last season. Iga Swiatek, Madison Keys, Emma Navarro and Elina Svitolina reached the women’s quarterfinals, while Ben Shelton and Lorenzo Sonego joined Sinner in the men’s final eight.
