A vintage Novak Djokovic tamed Carlos Alcaraz in a late-night blockbuster to set up an Australian Open semi-final with Alexander Zverev as two-time women's defending champion Aryna Sabalenka fought on.
The 37-year-old Djokovic rolled back the years at the scene of his greatest achievements on Rod Laver Arena in Melbourne with a 4-6, 6-4, 6-3, 6-4 triumph sealed close to 1:00 am.