MELBOURNE — On a sweltering Sunday afternoon at Rod Laver Arena, Türkiye’s rising tennis star Zeynep Sönmez didn’t just win a tennis match; she won the hearts of the global sporting community. In a stunning third-round upset at the Australian Open, the 23-year-old defeated the World No. 6, Jessica Pegula, 6-4, 5-7, 7-6 (10-8), to become the first Turkish player in history to reach the second week of a Grand Slam singles tournament.