A huge procession and funeral will be held for Muhammad Ali on Friday to “allow anyone that is there from the world to say goodbye”, his family says.
The funeral will be in Ali’s home city of Louisville, Kentucky. Ex-President Bill Clinton will deliver a eulogy.
Comedian Billy Crystal and sports journalist Bryant Gumbel are also expected to speak.
The boxing legend, 74, died on Friday of “septic shock due to unspecified natural causes”.
A private family service will be held on Thursday.
The three-time world heavyweight champion, and one of the world’s greatest sporting figures, died in Phoenix, Arizona, and his body will be flown to Kentucky in the next two days.
He will be buried at Cave Hill Cemetery in Louisville, the city of his birth in 1942.
The fighter had been suffering from a respiratory illness, a condition that was complicated by Parkinson’s disease.