• Healthier, leaner Dufner has big plans for 2014-15

    Enters Humana Challenge 20 pounds lighter than last season

  • A new diet has helped Jason Dufner shed weight and he hopes it will also limit injury. (Andrew Redington/Getty Images)A new diet has helped Jason Dufner shed weight and he hopes it will also limit injury. (Andrew Redington/Getty Images)