Well Victorian sports spectators showing their lack of class yet again, booing Djokovic when he retired from his match, absolute muppets.
If he is hurt, which presumably he is, because he has never shown an inclination to throw in the towel previously.
Why would he keep playing, if he knew that he would face a more prolonged recovery and may actually cause enough damage at his age to end his career.
The game he was playing was against Zverev and they were both playing long rallies, therefore the match would have been extremely physical and Zverev had won the first set.
Djokovic may well have been playing under duress and even if he had won the match and caused a career ending injury, he then would have had to front up for another tough match in the final.
Maybe some of these muppets should get of their fat lazy arses and find out what a physical injury feels like, rather than paying money and expecting someone to ruin their lives for their entertainment.
From Djokovic's perspective, better to stop and have a chance of recovering for the next Grand Slam, than to have a career ending injury just to entertain the Victorian public.
Let's be honest the Victorian muppets didn't Boo Chairman Dan and he has left them with a lifetime of misery, Djokovic only left them two hours short of a entertainment show.
That display at the AO was Aussie entitlement at its best IMO.