Novak Djokovic dramatically retired from his Australian Open semi-final against Alexander Zverev after being unable to play through a torn muscle in his upper left leg before admitting there is a “chance” may have played at the tournament for the final time.
The 37-year-old conceded the match immediately after putting a simple volley into the net on set point, and was strangely booed by some sections of the crowd when walking off the court despite clearly struggling with the injury during the 82-minute opener.
