Australian Open matches were briefly suspended on Saturday morning, interrupting Jannik Sinner’s progress to the last 16. Learn the conditions for the enforcement of the Extreme Heat Protocol, including Heat Stress Index thresholds, cooling breaks, and play suspension. https://english.mathrubhumi.com/sports/tennis/australian-open-extreme-heat-protocol-dyf3fi5i?utm_source=dlvr.it&utm_medium=mastodon #AustralianOpen #tennis #ExtremeHeatProtocol #MelbournePark