Novak Djokovic's bid for a record 25th Grand Slam singles title came to an abrupt end Friday at the Australian Open when the 37-year-old legend had to retire from his semifinal against Alexander Zverev after just one set due to injury.

Novak Djokovic has posted a scan of his injured left hamstring on social media more than 24 hours after being booed at the Australian Open when he quit playing one set into his semifinal because of what he said was a torn muscle.

Novak Djokovic rounded on his critics on Saturday the day after retiring injured in his Australian Open semi-final after the first set against Alexander Zverev to boos from the crowd at the tournament he has won 10 times.