Count Novak Djokovic as being in Danielle Collins’ corner. He thinks her response to booing fans at the Australian Open was absolutely fine — which should come as no surprise, given the way Djokovic gets into back-and-forths with hecklers at his matches,

Danielle Collins has hit back at criticism of her goading of the Australian Open crowd, saying: “I don’t care what some guy living in his basement is writing on the internet.” Collins, the American world No.

Read what Novak Djokovic had to say about Danielle Collins' controversial action and remarks after her Australian Open victory.