
Novak Djokovic pledged to continue his hunt for a record 25th Grand Slam title as he processed the disappointment of retiring from his semifinal due to a muscle injury at the Australian Open where he was booed off the court by some of the Melbourne spectators.
Djokovic retired injured on Friday after losing the first set 7-6(5) to Alexander Zverev and the 10-times champion made a pained exit from Rod Laver Arena amid the negative response from sections of the crowd.