Grégorio Juan Esperón
Grégorio Juan Esperón (known in different sources as Iván Esperón or Gregorio Esperón) (August 15, 1912 – September 30, 2000) was an Argentine professional football player and coach. He was a very good right back, probably, the best defensive player in the history of Platense. In 1938, he refused a transfer to a bigger club, because he did not want his team, Platense, to be weakened. As a player, at the end of his career, he played 7 games for A.S. Roma in the Serie A in the 1946/47 season, where he also coached the youth teams. Between  1940 and 1942, he played 10 games for the Argentine national team, scoring one goal against Uruguay. In 1941, he was part of the national team that won the Copa América (Campeonato Sudamericano). He also coached the national team of Ecuador. After he retired as a player, he coached in Argentina, Ecuador and Paraguay. He coached Platense, his old team, from 1948-1950 and 1956; Barcelona SC in 1950; Emelec from 1951-1953; Ecuador in 1953; Deportiva Valdez in 1953; Cerro Porteño in 1954. His last coaching job was Excursionistas in 1964.