In a stunning turn of events at the Australian Open 2025 semifinals, Novak Djokovic was forced to retire due to injury after a closely contested first set against Alexander Zverev. The match, held at the iconic Rod Laver Arena, saw Djokovic battling through pain but ultimately conceding after losing the opening set 7-6(5). This retirement marks a significant moment in Zverev's career as he advances to his first Australian Open final. WATCH.