Ken Norton Sr., a former heavyweight boxing champion who defeated Muhammad Ali in 1973 before losing in the rematch later that year, has died at 70, his friend and manager Patrick Tenore says. Norton had congestive heart failure and died in an Arizona hospital where he had been undergoing rehabilitation since suffering a stroke last year.
Photo: Ken Norton Sr., left, trades punches with Muhammad Ali during their 1973 rematch. Ali won the fight by split decision. (Associated Press / September 11, 1973)