In football it's the legs that go first, sapped of their spring and strength by season upon season of relentless battering. In baseball it's the eyes, diminished to the degree that a curve ball looks like a fast ball and there are too many called strike threes. In golf it's the nerves, causing a 3-ft. putt to look like three miles of bad road. In sports from archery to yachting, age steals away the skills, leaving nothing behind for the graying champion to embrace. Except heart.
Martina Navratilova brought her surgically repaired knees, prescription eyeglasses and fragile psyche this year to...