Jannik Sinner’s stunning comeback victory at the Australian Open has triggered huge celebrations in his home country of Italy. It was a first men’s grand slam singles title for an Italian since 1976. Far-right Prime Minister Giorgia Meloni claimed the 22-year-old’s five-set win in the final against Daniil Medvedev for the whole nation on Sunday. Meloni wrote on Instagram: “Italy has won the Australian Open for the first time. A memorable achievement worthy of a true champion.” Sinner hails from the predominantly German-speaking autonomous province of South Tyrol on the Austrian border. The loc…