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 appeared to revel in playing the part of pantomime villain at the Australian Open on Thursday as she took down home favorite Destanee Aiava 7-6, 4-6, 6-2 in front of a raucous crowd.

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