Once hailed as Faroe Islands biggest talent, he made his debut in Faroese football with B36 Tórshavn as a defender on 28 April 1996 and soon became a prolific striker.

His goals earned him trials at Liverpool and Watford[2] and eventually a loan move to Danish league side Odense BK but he returned home after only one unsuccessful season.

á Borg made his debut for the Faroe Islands in an August 1998 European Championship qualifying match against Bosnia.

He has earned 62 caps, scoring 2 goals[5] and has represented his country in 23 FIFA World Cup qualification matches.

He announced his retirement from International football in July 2010 and had final appearance in a Faroese shirt against Estonia in August 2010.