He played 21 games and scored eight goals for the Denmark national football team, with whom he won a bronze medal at the 1948 Summer Olympics.

[2] He was a part of the Frem teams that won the 1941 and 1944 Danish championship trophies, and was selected to represent Denmark at the 1948 Olympics.

He scored two goals in four games as Denmark won bronze medals, and was one of several Danish footballers who was bought by professional Italian clubs after the Olympics had ended.

[3] Despite the high transfer fee, in Italy Pløger did not make as great an impact as some of the other Danes, who were brought in from the 1948 Olympic team.

[4] After finishing his professional career in Italy, Pløger settled as a Ford car dealer in Frederiksberg.