Aries Merritt: Hurdler eyes Rio after kidney transplant

A year ago, Aries Merritt thought he had run his last race. But after a kidney transplant to fight a rare disease, the world-record holder is in contention for

A year ago, Aries Merritt thought he had run his last race. But after a kidney transplant to fight a rare disease, the world-record holder is in contention for a spot on the U.S. Olympic track and field team.