Borelli began his career at Platense in 1980, he soon came to the attention of River Plate and signed for the Argentine giants in 1985.

In 1994, he moved to Club Atlético San Lorenzo de Almagro where he won the Clausura 1995 tournament.

[2] In the 2002–03 season, Borelli was the assistant manager of Néstor Gorosito at Nueva Chicago.

[2] In December 2015, Gorosito was appointed as manager of Spanish club UD Almería and took Borelli with him as his assistant.

His son Éder Borelli, and father-in-law Vladislao Cap also played football professionally.