Serena Williams was frustrated. She had wasted eight break points in the first set of her second-round match against fellow American Christina McHale, and she wasn't having it. Thus, with nothing else to blame, she took out her anger on her racquet, smacking it on the grass beside her chair a few times and then, a few seconds later, flinging it behind her across the slick green surface.
It just so happened to find a cameraman's lap: