Muhammad Ali

ap750519013_31.jpg

Former heavyweight champion Joe Louis, left, playfully jabs a finger under the eye of present champ Muhammad Ali, at the Boxing Writers Association's 50th Anniversary dinner in New York, May 19, 1975. Ali was named Fighter of the Year and Louis was honored as boxing's Man of the Half Century. (AP Photo)

AP750519013_31

Former heavyweight champion Joe Louis, left, playfully jabs a finger under the eye of present champ Muhammad Ali, at the Boxing Writers Association's 50th Anniversary dinner in New York, May 19, 1975. Ali was named Fighter of the Year and Louis was honored as boxing's Man of the Half Century. (AP Photo)

AP660903027_30

US American boxer Muhammad Ali (former Cassius Clay) playfully places a punch at Joe Louis's belly in a hotel in Frankfurt am Main, West Germany, September 3, 1966. (AP Photo)

3aca0f88c2a86c11530f6a706700a0a7.jpg

FILE - In this July 27, 1971, file photo, Referee Jay Edson, left, keeps an eye on the fight between Muhammad Ali and Jimmy Ellis, right, in the 12th round of their heavyweight fight in Houston. Ellis, a former heavyweight boxing champion who trained with fellow Louisville fighter Muhammad Ali and squared off against some of his era's best fighters, has died in his hometown Tuesday, May 6, 2014. He was 74. Ellis' brother, Jerry, said the ex-champion died at a Louisville hospital Tuesday after suffering from Alzheimer's disease in recent years. (AP Photo/File)

3195d1ce40fa6c0d500f6a706700cee1.jpg

FILE - In this Feb. 18, 2012 file photo, Illusionist David Copperfield arrives at the Keep Memory Alive 16th Annual "Power of Love Gala" honoring Muhammad Ali with his 70th birthday celebration, in Las Vegas. Attorneys for Copperfield and several current and former Las Vegas stagehands say they’re talking about settling a pair of lawsuits filed in a dispute about trade secrets and overtime pay. A Feb. 15, 2014 federal lawsuit accuses Copperfield of sometimes making stagehands work 14 hours a day and seven days a week. (AP Photo/Jeff Bottari, file)

AP6505260155_6

Referees Jersey Joe Walcott tries to restrain an eager Muhammad Ali (Cassius Clay) as the heavyweight champion stood ready to resume action against a downed Sonny Liston in Lewiston, Maine on May 26, 1965 title fight. Ali kept his title via a one-round KO. (AP Photo)

AP650525099_11

Heavyweight champion Muhammad Ali, left, is shown peering over to read scales as the weight of challenger Sonny Liston was first announced as 219 1/2, May 25, 1965, through error. After a recheck, it was set at 215 1/4. Ali came in at 206. (AP Photo/stf)

AP650525080_12

Heavyweight champion Muhammad Ali stands over challenger Sonny Liston, who lies stretched on the canvas, in first and only round of the scheduled 15-round title bout in Lewiston, Maine, on May 25, 1965. Ali won on a KO. The referee is Joe Walcott. (AP Photo)

AP650525071_2

Heavyweight champion Muhammad Ali goes into a victory dance as referee Joe Walcott signals the end of the bout over fallen challenger Sonny Liston, May 25, 1965, in Lewiston, Maine. The bout ended in one minute of the first round. (AP Photo)

AP6505250560_4

Muhammad Ali found motivation by pointing at an opponent while visualizing him as the thief of a cherished childhood bike. (AP Photo)

AP6505250537_5

Heavyweight champion Muhammad Ali ?Cassius Clay? (left) loses smile and raises hand briefly during exchange with Sonny Liston after weight-in ceremony at Lewiston, Me., arena on May 25, 1965. The exchange never went beyond words and the action will be a 15-round title bout. In center is Drew Brown, an Ali trainer. Clay weighed 206 and Liston 215 ¼. (AP Photo)

AP6505250180_3

Sonny Liston, in black trunks, is seen just before Muhammad Ali's "phantom punch" that knocked him out in 1 minute, 42 seconds of the first round during their heavyweight championship bout in Lewiston, Maine on May 25, 1965. (AP Photo/stf)

AP6505250172_0

Heavyweight champion Muhammad Ali stands over fallen challenger Sonny Liston, shouting and gesturing shortly after dropping Liston with a short hard right to the jaw on May 25, 1965, in Lewiston, Maine. The bout lasted only one minute into the first round. Ali is the only man ever to win the world heavyweight boxing championship three times. He also won a gold medal in the light-heavyweight division at the 1960 Summer Olympic Games in Rome as a member of the U.S. Olympic boxing team. In 1964 he dropped the name Cassius Clay and adopted the Muslim name Muhammad Ali. (AP Photo/John Rooney)

AP6505250131_1

World heavyweight champion Muhammad Ali is held back by referee Joe Walcott after Ali knocked out challenger Sonny Liston in 1 minute, 42 seconds of the first round of the scheduled 15 round championship bout in Lewiston, Maine, May 25, 1965. (AP Photo/stf)

AP6505250107_17

Muhammad Ali peers down at challenger Sonny Liston as Liston goes down in the first and only round of their title bout in Lewiston, Maine, May 25, 1965. Ali won on a KO to retain his crown. (AP Photo/stf)