Dustin Johnson returned from celebrating his U.S. Open victory by taking down the world's No. 1 player to win another World Golf Championship. Johnson didn't miss a beat from Oakmont to Firestone, powering and putting his way to a 4-under 66 on Sunday to win the Bridgestone Invitational for his second straight victory, making him the player to beat heading into the British Open in two weeks. More...