Sune Andersson bore the nickname “Mona-Lisa”, because of his impenetrable facial expression when playing. In the prime of his career, he played for AIK Solna, captaining the squad from 1948 on. He was a multifunctional midfielder, and played on both sides of the field, as well as in the centre. His only prize with Solna was the 1949 Swedish Cup, but he was more successful with the national team. He played played 28 international matches (3 goals) between 1947 and 1950, winning the gold medal in London and reaching third place in the 1950 World Cup. His performance at that tournament earned him a transfer to Italy’s Serie A, with AS Roma. He played there for two seasons, scoring 12 times. He then returned to Sweden, continuing his playing career while also coaching. Andersson remained active on the bench until 1971, but never coached major Swedish teams.