Djokovic is only interested in tennis' biggest prizes. He still has the game to win them, but at age 37 his body is letting him down

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.