Canada's Grand Slam champ Andreescu credits winning mindset to meditation

NEW YORK -- Bianca Andreescu began her day Saturday the same way she started every morning during her run to the U.S. Open title. By meditating and visualizing how she could beat her next opponent. Those practices, adopted by the Canadian teenager years ago, seem to be working for her throughout her breakout season. And Saturday's visualization session -- where she saw herself defeating American superstar Serena Williams for the U.S. Open championship -- worked especially well. "I put myself in