US President Barack Obama will not attend a memorial to the late boxer Muhammad Ali on Friday, the White House says.
Ali who died last Friday at the age of 74 in hospital in Phoenix, Arizona.
World leaders will be among thousands attending Friday’s procession and memorial service in Louisville, Kentucky, where Ali was born.
The White House said Mr Obama and his wife Michelle will be at daughter Malia’s high school graduation.
They will send a letter to the Ali family with White House senior adviser Valerie Jarrett, who knew Ali.