Sinner beats heat, broken net to make quarters

Italy's Jannik Sinner hits a return against Denmark's Holger Rune during their Australian Open fourth-round match in Melbourne on Monday. AFP MELBOURNE — Defending champion Jannik Sinner needed medical attention in energy-sapping heat and overcame a long interruption when he broke the net to reach the Australian Open quarterfinals on Monday. The top seed again dropped a set before coming home 6-3, 3-6, 6-3,6-2 against dangerous Dane Holger Rune at Rod Laver Arena with both men needing medical attention. "It was for sure very, very tough," said Sinner, who is bidding to become the first Italian man to win three Grand Slam crowns. Compatriot Lorenzo Sonego ended the dream run of another teenager at the Australian Open as the unseeded Italian beat qualifier Learner Tien 6-3, 6-2, 3-6, 6-1 and reached the quarterfinals of a Grand Slam for the first time on Monday.