LIEGE, Belgium — Cadel Evans thinks one Tour de France title will make it easier to win another one. And he's ready to add that second championship right now.
    Evans opens his title defense when the 99th edition of cycling's marquee race begins today with a quick, 4-mile prologue in Liege, Belgium — an individual time trial expected to be dominated by specialists such as Fabien Cancellara, of Switzerland, and Tony Martin, of Germany, or contender Bradley Wiggins, of Britain.
    The beginning of the Tour offers the cycling world a welcome return to racing after the sport's doping ghosts returned this month, with charges by the U.S. Anti-Doping Agency that Lance Armstrong used performance-enhancing drugs en route to his seven Tour victories.