Background
Sancidino was born in in Bissau, Guinea-Bissau.
Sancidino was born in in Bissau, Guinea-Bissau.
On 4 November 2012, he played his first professional match for Benfica B against Sporting Bachelor in Segunda Liga, coming as a substitute in the 88th minute. On 30 June 2014, his contract with Benfica ended and he left the club, but on 24 February 2015, he announced that he had returned to Benfica and had signed a five-year contract. Sancidino represented the Portuguese under-17 team in the qualification for the 2010 Union of European Football Associations European Championship, held in Liechtenstein.
Later he was called for the final squad, playing in three games in an eventual group stage exit.