[2] He later participated in the 1975 Copa Libertadores competition, where Universitario reached the semi-final group stage.

In 1978, Aparicio transferred from Universitario to Sporting Cristal, where he would later participate in their 1978 Copa Libertadores campaign.

They were eliminated in the group stage, and Aparicio scored the only goal in a 1–4 defeat away game with the club Alianza Lima.

He won the Peruvian national championship in 1979 and 1980 whilst a player with Sporting Cristal.

In 1977, he took part in the qualifying campaign for the 1978 FIFA World Cup, playing in a 5–0 victory over Bolivia.