Octavio Muciño

Cruz Azul

Muciño had enrolled in Cruz Azul's youth team at the age of 7. At the age of 19, he was debuted with the senior team during the 1969–70 Mexican Primera División season against C.F. Monterrey on 19 November 1969. Muciño scored his first senior league goal on 29 March 1970 in the México 1970 tournament against Laguna. Cruz Azul went on to win the México 1970 competition, with Muciño netting a total of 14 league goals at the end of the season.

Guadalajara

In 1973, Muciño was transferred to C.D. Guadalajara for a fee of about 1 million pesos. The team had been undergoing poor performances in the league for a number of seasons at this point, ending the 1973–74 season 11th on the general table. In spite of this, Muciño established himself as a fan favorite and key player, netting 15 goals in 26 games becoming the team's top goal scorer. Muciño played his final match with Guadalajara on 21 April 1971 in a 1-0 loss against Club Jalisco. At the time of his death, there had been transfer negotiations between Guadalajara and Atlas where Muciño would be exchanged for Ricardo Chavarín.

At the age of 21, Muciño debuted for the Mexico national football team on 6 July 1971 in a friendly match against Greece. Muciño scored his first and second international goals on 4 December 1971 against Honduras in the 1971 CONCACAF Championship. Mexico would win the competition largely in part of his goals. Muciño was a key figure in the 1973 CONCACAF Championship, which doubled as CONCACAF's 1974 FIFA World Cup qualification, starting in all of Mexico's 5 games. Muciño scored 4 goals in a 8 - 0 win against the Netherlands Antilles, becoming Mexico's top goal scorer in the competition. Muciño played his final match international match on 18 December 1973 in a 1-0 win against Haiti in the competition.

Octavio Muciño Valdés was born to Roberto Muciño Martínez, a mechanic, and Genoveva Valdés in Jasso, Hidalgo on 14 May 1950. He had two brothers and one sister. His father, Roberto Muciño Martínez, was also a footballer who played for Cruz Azul during both the club's amateur and professional eras. Muciño Martínez was part of the squad which won the club's promotional title in the 1963–64 season and subsequently played in the Primera División de México. Muciño Valdés was encouraged by his father to pursue a career in football.

Muciño was nicknamed El Centavo due to his small stature as a child. He had one child, Octavio Muciño Jr., who was born on 1 February 1973.