Tigres knew him as El Jefe, and he left in 1988 as the club's all-time scorer with 104 goals in 413 games, a mark that stood until Gignac passed it in 2019. He captained the hosts to the 1986 World Cup quarter-finals, won the Mexican league in 1977-78 and 1981-82, lifted the 1975-76 Copa México and took the Balón de Oro in 1978-79. Career record: 52 caps and 9 goals for Mexico; club career at Atlético Español, Tigres UANL, San Jose Earthquakes.
| 1971–1974 | Atlético Español |
| 1975–1988 | Tigres UANL |
| 1988–1988 | San Jose Earthquakes |
| — | Cruz Azul |
| Mexico | 52 caps, 9 goals |
Mexico legends whose careers overlapped Boy's
One rank above: Pavel Pardo at #21.
One rank below: Benjamín Galindo at #23.
Mexico's editorial top five: Hugo Sánchez · Rafael Márquez · Andrés Guardado · Cuauhtémoc Blanco · Guillermo Ochoa.