Cassius, after 1964, 8 letters
First name in boxing, 8 letters
Leader of Black Muslims who campaigned for independence for Black Americans (1897-1975), 8 letters
The Arab prophet who founded Islam (570-632), 8 letters
'60s and '70s heavyweight champ, 11 letters
It's hard to be humble when you're as great as I am speaker, 11 letters
Boxer born January 17, 1942, 11 letters
Boxing gold-medallist, 11 letters
He was upset by Leon Spinks, 11 letters
Self-proclaimed astronaut of boxing, 11 letters
Sports Illustrated's Sportsman of the 20th Century, 11 letters
Subject of the tome GOAT, 11 letters
Three-time heavyweight champion known as The Greatest: 2 wds., 11 letters
Heavyweight and Morgiana's master, 15 letters
The Greatest excuse?, 13 letters
A believer or follower of Islam, 10 letters
The monotheistic religion of Muslims based on the Koran, 13 letters
A believer or follower of Islam, 10 letters
The first month of the Islamic calendar, 8 letters
A genus of grasses of the family Gramineae grown in America and Asia, 12 letters