Muhammad Ali and Ken Norton during their 1973 fight in San Diego, the first 
of their three bouts against one another. Ali would wind up losing a 12-round 
decision after Norton broke his jaw early in the fight.

Kenneth Howard Norton Sr. (August 9, 1943 – September 18, 2013)

LAS VEGAS (AP) –  Former heavyweight champion Ken Norton, who beat
Muhammad Ali and then lost a controversial decision to him in Yankee Stadium,
has died.

His son says he passed away Wednesday at a local care facility. He was 70.

Norton had been in poor health for the last several years after suffering a series
of strokes, a friend of his said.