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.

The 24-time Grand Slam champion posted on social media what appears to be an MRI of his left hamstring injury.

Some critics questioned the legitimacy of his injury that led to his medical retirement from the Australian Open semifinal.