The Australian Open heat rules didn't favor Jannik Sinner, but tennis luck did. The two-time defending champion struggled with severe cramps during his third-round match against Eliot Spizzirri, with temperatures reaching 100 degrees Fahrenheit. Despite trailing 2-1 in the third set, the match was suspended due to the Heat Stress Scale reaching 5.0, which mandates play stoppage at an even number of games. This rule change benefited Sinner, as he managed to break back and win the set, eventually claiming a 4-6, 6-3, 6-4, 6-4 victory in three hours and 45 minutes. The heat rule's impact was significant, as it provided a reprieve for Sinner, who has historically struggled in hot conditions. This incident highlights the fine line between skill and luck in tennis, especially when it comes to managing extreme heat.