Alan Minter Ali–Leon Spinks I undercard in Las Vegas, Nevada, he won his first bout in the United States by knocking out Sandy Torres in five. Then, he went to Italy once again to regain his European Middleweight title by knocking out Angelo Jacopucci in twelve rounds. Jacopucci died a few days afterwards, due to injuries sustained in the bout. Minter finished his year by avenging his loss to Tonna with a six-round knockout. In 1979, Minter won all four of his fights, two of them by knockout. On 16 March 1980, in Las Vegas, he was given a shot at World
Undisputed champion between 1880 and 1920. Once a consensus champion had been awarded the title, the championship could usually be taken only by beating the reigning holder, establishing a lineal championship. The New York State Athletic Commission (NYSAC) recognized champions from its foundation in 1920. The National Boxing Association (NBA) was founded by other U.S. state bodies in 1921, and began recognising champions in 1927. Until the 1960s, both usually recognised the same lineal champion. However, disputes could arise if the champion retired or moved to a different weight class. Occasionally, the International Boxing Union (renamed the European Boxing Union in 1946)