This was when boxing was truly international: Arguello (Nicaragua) vs Alcala (Panama) in Puerto Rico. Another example was Ali and Frazier 3 in Philippines, Foreman vs Ali in Congo, Ali vs Bugner in Malaysia, Duran vs Takayama in Costa Rica, Monzon vs Napoles in France, Frazier vs Foreman 1 in Jamaica, Frazier vs Ellis 2 in Australia and Leonard vs Duran 1 in Canada. Most "international" fights now involve two boxers from a different country or from two different countries in Las Vegas. And at least one is from Mexico