John McEnroe thinks Alexander Zverev doesn't have a reason to concern himself about what some may say about his road to a possible Australian Open title as the American tennis legend says no one will remember in a decade that Novak Djokovic from their semifinal match.

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

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