During his pro club playing career, Sibilio, who was well-known for being a great three-point shooter, won the FIBA Club World Cup championship in 1985, and the European Super Cup championship in 1986.

As a member of the senior Spanish national team, he competed in the men's tournament at the 1980 Moscow Summer Olympic Games.

He grew up starring in youth team competitions in the sports of baseball and basketball.

[2] Sibilio was a member of the senior men's Dominican Republic national team.

Sibilio died on 10 August 2019, at a property he owned in San Gregorio de Nigua, on the southern coast of the Dominican Republic.