In his active career, Christensen played for Danish clubs
AB and
Lyngby BK, as well as
French club
AS Saint-Etienne and
FC Aarau from
Switzerland. He debuted for the
Danish national team in 1982, and he played a total of 11 national team matches and scored 2 goals. He was selected to represent Denmark at the
1986 World Cup, but did not play any matches. After ending his active career, he became a football manager, and among other teams managed
Slagelse B&I,
Næstved BK,
AB, and
ÍF Fuglafjørður. ==Honours==