Australian Open: Injured Novak Djokovic withdraws after losing first set 7–6 to Alexander Zverev
For Djokovic, the withdrawal means that he won't win his record 25th major title and 11th Australian Open. Injuries have prevented him from finishing two of his past four Grand Slam tournaments. He withdrew from last year's French Open before the quarterfinals due to a torn meniscus in his right knee.