Serena has mother of all meltdowns in US Open final loss

Serena Williams came into Saturday's U.S. Open final looking for history. What she got was a historic -- and histrionic -- meltdown that cost her a game and possibly the match as well. Naomi Osaka beat her idol, 6-2, 6-4, to win her first Grand Slam title. But all anybody will remember was Williams' emotional...