Trump stoked this alarming attack — and he won't care when such rage turns deadly

After her quarterfinal loss at the Australian Open, 21-year-old American tennis phenom Coco Gauff walked briskly off the court at Rod Laver Arena. She waved to the crowd. She nodded. She looked composed, resigned to the upset.

The cameras followed her into the tunnel, where she kept it together until she turned a corner and, believing she was finally out of sight, erupted. Gauff smashed her racket, again and again, pounding it into the ground in a raw release of anger. It was caught on camera.