Career
Later he belonged to the side of Bayern Munich which dominated international club football in the mid-1970s. Torstensson commenced his career with Åtvidabergs FF in southern Sweden, then a club renowned for its successful youth development. From 1967 onward he featured regularly in the senior team with which he ascended to the first division after the first season.
In the following years he was part of the team that defined the golden era of the club, winning the only titles in its history.
In 1973 the club also reached the cup final once more. Torstensson himself debuted 1972 in the Swedish national football team
In the first round of the 1973-1974 European Champions Cup campaign Åtvidabergs FF encountered Bayern Munich, with stars like Franz Beckenbauer and Gerd Müller one of the favourites of the competition. However, Torstensson impressed coach and management of Bayern and was speedily transferred for a then impressive sum of 580.000 Marks (290000 Euros).
Until 1977 he played in 81 Bundesliga matches for Bayern scoring 11 goals.
A further highlight was the winning of the Intercontinental Cup in the two finals against Cruzeiro European Commission of Brazil. Four years later he also participated in the world Cup in Argentina. Sweden exited there winless after round one.
On club level Torstensson moved 1977 to Football Club Zürich in Switzerland, returning a year later to Åtvidabergs FF, where he ended his career in 1980.