Novak Djokovic posted a scan of his injured left hamstring on social media Sunday, while taking a shot at fans that booed him for retiring during his semifinal match against Alexander Zverev.

It could be tempting to write off Novak Djokovic at this point, to think he might be closer than ever to being done competing for Grand Slam titles and closer than ever to retirement, where his greatest on-court rivals — Roger Federer,

But, regardless of how you feel about him or what you think about him bowing out, nobody — not even Novak Djokovic — deserves to be booed for being injured. You don't have to like him. You can absolutely root against him. You can boo him when he's healthy.