| Fight Name: | Muhammad Ali vs. Henry Cooper II |
| Fight Date: | 21 May 1966 |
| Location: | Arsenal Stadium, Islington, London, UK |
| Titles: | WBC, NYSAC, and The Ring heavyweight titles |
| Fighter1: |  Muhammad Ali |
| Nickname1: | "The Greatest" |
| Hometown1: | Louisville, Kentucky, U.S. |
| Record1: | 23–0 (18 KO) |
| Height1: | 6 ft 3 in |
| Weight1: | 207 lb |
| Style1: | Orthodox |
| Recognition1: | WBC, NYSAC, and The Ring heavyweight champion |
| Fighter2: |  Henry Cooper |
| Nickname2: | "Our 'Enry" |
| Hometown2: | Lambeth, London, UK |
| Record2: | 33–11–1 (22 KO) |
| Height2: | 6 ft 1+1/2 in |
| Weight2: | 185 lb |
| Style2: | Orthodox |
| Recognition2: | British and Commonwealth heavyweight champion |
| Result: | Ali won via 6th roundTKO |
Muhammad Ali vs. Henry Cooper II was a professional boxing match contested on 21 May 1966, for the WBC, NYSAC, and The Ring championship.[1]
On 16 April 1966 Muhammad Ali signed to make the fourth defence of the title he had won against Sonny Liston in June 1963, against Henry Cooper.[2] Cooper had faced Ali in the bout immediately prior to him becoming the champion and had famously knocked down the American with a trademark left hook at the end of the fourth round, with trainer Angelo Dundee appearing to possibly to pop an ampule of smelling salts under Ali's nose (which would have been a disqualifying offense if he had been caught).
The bout was fought at Arsenal Stadium, where it drew a live audience of 46,000 spectators. The fight held the record for the largest live audience at a British boxing event, up until Joe Calzaghe vs. Mikkel Kessler drew 55,000 spectators in 2007.[3] It was the first world heavyweight title bout to by held in the United Kingdom since Tommy Burns vs. Jem Roche in March 1908, 58 years earlier.
Ali stayed away from Cooper for the first three rounds as Cooper continued to stalk him. In the next two rounds, Ali allowed Cooper to come closer; but then in the sixth round the fight was again stopped because of a cut over Cooper's eye which started bleeding profusely.[4]
The Associated Press scored the first two rounds for Cooper, the third even, and gave Ali the fourth and fifth.
Reflecting on the fight Cooper observed:
Confirmed bouts:[5]
| align=center | Country | align=center | Broadcaster |
|---|---|---|---|
| CBN 9 | |||
| Pay TV (Live)[6] / BBC (Delayed) | |||
| ABC |
On pay-per-view closed-circuit television, the fight drew 40,000 buys in England, where it was shown in 16 theaters, grossing $1.5million ($ with inflation).[7] The fight was telecast at Odeon Cinemas.[8] On pay-per-view home television, the fight drew 40,000 buys,[9] as the first fight on Britain's experimental Pay TV service, at a price of £4, grossing £ ($),[10] [11] equivalent to £ ($) with inflation.
The fight was later aired on BBC, where it was watched by 21million viewers in the United Kingdom.[12] In the United States, the fight was broadcast live to 20million viewers via satellite.[9]