The crossword solutions for the term EX-RING KING are ALI, which stands for Muhammad Ali, an American professional boxer and activist. He was widely regarded as one of the most significant and celebrated sports figures of the 20th century. Ali was crowned 'The Greatest' and is considered one of the most influential athletes of all time. He won 56 out of his 61 professional fights and was the first boxer to win the world heavyweight championship three times.