Hall of Famer Harmon Killebrew says he's "feeling great" after being treated for esophageal cancer that was diagnosed in December, according to an ESPN.com report. The 74-year-old Killebrew arrived at Twins spring training this week for his annual stint as a guest instructor and spoke to reporters Thursday about his condition. Wearing a Twins uniform, Killebrew has lost some weight but looked healthy and was in good spirits.