Farewell to 'The Greatest'

Muhammad Ali crafted the plan for his final tribute years ago, long before he died.

On Friday, his family will honor the three-time world heavyweight champion just the way he planned, with a global celebration in his hometown of Louisville, Kentucky.

A procession will carry his body down an avenue in Louisville that bears his name, through his boyhood neighborhood and down Broadway, the scene of the parade that honored the brash young man - then known as Cassius Clay - for his gold medal at the 1960 Rome Olympics.