Nicknamed
El Mono (the monkey), Eugenio Arenaza began his career at
Telmo Carbajo of Callao in 1941. He joined
Alianza Lima in 1943. Relegated to the bench following the emergence of Teódulo Legario as Alianza's goalkeeper, he emigrated to Mexico, where he would spend the majority of his career, becoming the first Peruvian goalkeeper to play there. Initially playing for
ADO de Orizaba between 1945 and 1946, he joined
Club León in 1946. With León, he won two consecutive
Mexican championships in 1948 and 1949. He also won the
Mexican Cup in 1949, in addition to two
Super Cups in 1947 and 1948. He continued his career with various Mexican clubs—including
Club América between 1950 and 1951—winning a third personal championship with CD Marte in 1954. He retired in 1958, having played 241 matches in the Mexican First Division (353 goals conceded) Died in 1983, a street is named after him in Villas de San Juan, in the suburbs near León in Mexico (Eugenio El Mono Arenaza Street). == Honours ==