MELBOURNE, Australia — Novak Djokovic said he “loved” Danielle Collins’ reaction to a hostile home crowd at the Australian Open, adding that he was now a “big fan” of the American. After beating home favourite Destanee Aiava on a raucous Kia Arena, Collins blew kisses to the crowd and thanked them in her on-court interview for helping her land a “big fat pay check.” Asked about the incident after beating No. 26 seed Tomas Machac in straight sets, Djokovic said with a smile: “I loved her response. I loved it, everything she said on the court, off the court. “Big fan of...