Ramírez Perales played for nearly 15 years in Mexico's league top tier, beginning his career with UNAM in 1988. By the following year he had become a starter in central defense, and he started 41 matches in 1990–91 as Pumas won the league, overcoming Club América in the final.
Ramírez Perales played for nearly 15 years in Mexico's top tier league, beginning with UNAM in 1988. By the next year he was a central defense starter and started 41 matches in 1990–91 as Pumas won the championship, defeating Club América in the final.