STOCKHOLM, Sweden -- Ingemar Johansson, the Swede who stunned the boxing world by knocking out Floyd Patterson to win the heavyweight title in 1959, has died. Johansson was 76.
Johansson died Friday at a nursing home in Kungsbacka on the Swedish west coast, his daughter Maria Gregner said.
Johansson was diagnosed with Alzheimer's disease and dementia more than 10 years ago, when he lived in Stockholm.
Known as "Ingo" to Swedes, Johansson knocked out Patterson in the third round at Yankee Stadium on June 26, 1959, to win the heavyweight title. He floored the American seven times before referee Ruby Goldstein stopped the fight 2:03 into the round.
Back home, hundreds of thousands of Swedes listened to the live radio broadcast at 3 a.m. as Johansson became only the fifth heavyweight champion born outside the United States. Swedish newspapers printed extra editions with Johansson on the cover.
"What he did was the biggest feat ever in Swedish sporting history," his longtime friend Stig Caldeborn said. It earned Johansson The Associated Press' Male Athlete of the Year honors in 1959, only the second Swede to win the award.
Patterson avenged the upset loss a year later in the rematch in New York, knocking Johansson out in the fifth round. In March 1961, the Swede floored Patterson twice in Miami before being knocked out in the sixth round of the rubber match. Patterson died in 2006.
Johansson had four more fights -- all wins, one of them a knockout of England's Dick Richardson for the European title in 1962 -- before retiring the following year. He finished his career with a 26-2 record, including 17 knockouts.
A well-schooled upright boxer, Johansson had a good jab that helped set up a tremendous knockout right hand dubbed "Ingo's Bingo" and the "Hammer of Thor."
Johansson went 61-10 with 31 KOs as a decorated amateur. His biggest disappointment came at the 1952 Olympics in Helsinki, Finland, where he was disqualified in the heavyweight final for not giving his best.
Johansson always claimed that he backed away in that fight in an attempt to lure his American opponent Ed Sanders into his right-hand counter. The Swede eventually received his silver medal 30 years later from the International Olympic Committee.
Johansson became a businessman after his boxing career. He later moved to Florida, where he operated a hotel in Pompano Beach and started playing golf. He also completed in the Stockholm Marathon before hundreds of thousands of spectators in 1985.
Johansson was married and divorced twice, and is survived by six children. Funeral arrangements were not immediately announced.