Australian Open: Novak Djokovic booed off after withdrawing from semi-final against Alexander Zverev
Novak Djokovic left Rod Laver Arena to a chorus of boos after dramatically pulling the plug on his Australian Open campaign a set into his semi-final against Alexander Zverev. There had been doubt about the Serbian's fitness until he took to the court after he suffered a left leg injury during his quarter-final against Carlos Alcaraz on Tuesday.