 Robertson spent six seasons with Tasmanian club Wynyard, playing in premierships with the club in 1975 and 1979 before joining Hawthorn the following season.Robertson became a key part of the club's dominance during the early 1980s.In the 1983 VFL Grand Final he became the first Tasmanian to win the Norm Smith Medal after a superb tagging job on Essendon's dangerous rover Tim Watson.