 He played in the defence at both club and international levels, and with the Argentina national football team, he featured in the team's victorious 1993 Copa América campaign in Ecuador, and at the 1994 FIFA World Cup in the United States.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 his time at River he helped the club to win the 1985-1986 Primera, their first Copa Libertadores, the Copa Intercontinental and the Copa Interamericana.