MELBOURNE, AUSTRALIA – JANUARY 16: Danielle Collins of the United States celebrates winning match point in the Women’s Singles Second Round match against Destanee Aiava of Australia during day five of the 2025 Australian Open at Melbourne Park on January 16, 2025 in Melbourne, Australia. (Photo by Hannah Peters/Getty Images)

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,

American tennis player Danielle Collins embraced the Australian Open boos after her latest win. But there's more to her heel turn than meets the eye.