Jannik Sinner's second-round match at the Australian Open is currently tied at 1-1 against American Eliot Spizzirri, with the match ongoing under extreme heat conditions. The tournament has implemented the Extreme Heat Protocol, a five-level system monitoring temperature, humidity, wind, and radiation to ensure player safety. Temperatures are forecasted to reach up to 40°C, with peak heat between 3 PM and 8 PM, prompting the possibility of match suspensions if conditions worsen. The protocol includes measures such as increased hydration, cooling strategies, extended breaks, and potential suspension of play at level 5. Currently, the match is played with the roof open, and the heat intensity is at level 2.7. Sinner experienced a challenging start, losing the first set 6-4, but responded in the second set with resilience, winning 6-3 after overcoming early difficulties. The heat has also affected other players, including Jasmine Paolini, who retired after suffering a stomach ailment caused by the heat. The match is scheduled to continue with Sinner aiming to extend his winning streak in Australia, currently at 17 consecutive matches. Spizzirri, ranked 85th and participating in his first third-round Slam, has shown significant talent, having defeated Joao Fonseca and Chinese player Wu in a lengthy five-set match. The upcoming match is set for around 2 AM Italian time and will be broadcast on Eurosport and other platforms. This is the first encounter between Sinner and Spizzirri.