He started his footballing career as a right winger, but eventually settled as a tall, strong, and fast central defender.

When AaB introduced professional wages, the management planned to pay all players the same amount, which prompted Munk Jensen and goalkeeper Karsten Simensen to leave the club.

[2] He moved abroad once more to play for North American clubs Edmonton Drillers and San Jose Earthquakes in 1979.

Munk Jensen made his international debut with the Denmark U19 national team in June 1964, and played eight under-19 games until July 1965.

He did not play his second international match until June 1968, but then established himself in the starting line-up, and was named 1968 Danish Football Player of the Year.

[2] After the rule of amateurism was abolished in 1971, Munk Jensen re-entered the Danish team in June 1972, and played a further four games that year.