Sinner survives heat scare to stay alive at Australian Open
![Jannik Sinner battles through extreme heat during his third-round match in Melbourne. [photo credit: Xinhua]](https://sportsbytes.com.ph/wp-content/uploads/2026/01/NCGFbQuiOtmVH7kt-400x200.png)
Jannik Sinner fought through cramps, extreme heat and a stubborn American challenger to keep his Australian Open title defense intact on Saturday in Melbourne.