President Barack Obama is to miss the memorial to boxer Muhammad Ali because it clashes with his daughter’s high school graduation.
A final goodbye for Ali will take place on Friday at the KFC Yum Center with the likes of former U.S. President, Bill Clinton and Turkish President, Tayyip Erdogan expected to attend.
Other world leaders will be among thousands attending the procession and memorial service in Louisville, Kentucky, where Ali was born in 1942.
The White House said Mr Obama and his wife Michelle will be at daughter Malia’s graduation in Washington, DC.
The Obamas will send a letter to the Ali family with White House Senior Adviser, Valerie Jarrett, who knew Ali.
A Muslim funeral for Muhammad Ali has drawn thousands of admirers and mourners to the boxer’s hometown of Louisville, Kentucky.
The Islamic service was held at a convention space in Freedom Hall, the complex where Ali had his last fight in front of his home fans.
An estimated 14,000 people, representing many races and creeds, attended the memorial service.