Novak Djokovic has lashed at critics who questioned the legitimacy of his injury that led to his medical retirement from the Australian Open semifinal. The 24-time major winner posted an MRI of his left hamstring with a not-so-subtle jab at the "experts" who doubted the severity of his injury.

Novak Djokovic’s shocking retirement from the Australian Open semi-finals due to a leg injury has sparked support, skepticism, and questions about his future

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.