#4 He retired as a player at the age of 21
Santos started his career as a footballer in 1966 when he used to play for S.L. Benfica at the youth level. He then moved to another Portuguese outfit Maritimo. 2 years later, he joined Estoril where after playing for 2 more years, he called it quits in 1975 at the age of 21. He played as a left-back for much of his career.
Following his retirement, he decided to go ahead and complete his education before turning to coaching later on in his career.
Edited by Staff Editor