Novak Djokovic’s quest for a record-extending 25th grand slam title has been cut short at the Australian Open after he stunningly retired from his semifinal match due to injury.

Novak Djokovic booed when retiring hurt after losing competitve opening set to Alexander Zverev in a tie-breaker; its the second time in the last four Grand Slams the 37-year-old has had to withdraw to injury;

Novak Djokovic admitted there is a “chance” he has played at the Australian Open for the final time after retiring injured from his semi-final against Alexander Zverev but says he remains motivated to chase further titles.