[4] Inácio had his first call-up to the first team on 6 July 2020, remaining unused in a goalless draw at Moreirense in the Primeira Liga;[5] he would initially struggle to be integrated, due to being reserved by nature, but managed to succeed with the help of manager Ruben Amorim and his teammates Nuno Mendes, Eduardo Quaresma and Tiago Tomás, whom he had befriended during his time in the youth sides.

[7] On 23 January, he provided the assist for Pedro Porro in a 1–0 defeat of Braga to help his club win the Taça da Liga; his performance in the match impressed Amorim, with the player eventually surpassing Luís Neto in the pecking order.

[12] On 12 November 2023, in the Lisbon derby against Benfica at the Estádio da Luz, Inácio was sent off after receiving a second yellow card at the start of the second half; Sporting went on to lose 2–1.

[13] On 14 December, in their final UEFA Europa League group game, at home to Sturm Graz, he came off the bench at half-time and scored twice in ten minutes to seal a 3–0 victory.

[17] He was called up to the senior side by Fernando Santos on 26 August 2021, for 2022 FIFA World Cup qualifiers against Azerbaijan and the Republic of Ireland and a friendly with Qatar.

[22] His first appearance took place on 23 March 2023, when he played the entire 4–0 victory over Liechtenstein in the UEFA Euro 2024 qualifiers which was the first game in charge of new manager Roberto Martínez.

The former considered himself a shy person who did not feel comfortable posting about himself on social media; his favourite hobbies were playing street football and the PlayStation alone or with friends.