|Full name||Alfa Semedo Esteves|
|Date of birth||30 August 1997|
|Place of birth||Bissau, Guinea-Bissau|
|Height||1.89 m (6 ft 2 in)|
(on loan from Benfica)
|2014||Fidjus di Bideras|
|2016–2017||→ Vilafranquense (loan)||29||(4)|
|2019||→ Espanyol (loan)||3||(0)|
|2019–||→ Nottingham Forest (loan)||0||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 16:33, 8 July 2019|
Born in Bissau, Semedo started playing football at local club Fidjus di Bideras. In 2014, aged 16, he moved to Portugal and joined Benfica's youth system. After playing two years for their juniors team, he was loaned out to Vilafranquense in Campeonato de Portugal for one season. On 8 July 2017, he signed a four-year contract with Moreirense in Primeira Liga, with whom he would make his professional debut in a Taça da Liga match against Desportivo das Aves on 30 July that year.
Following his return to Benfica in July 2018 for €2.5 million, Semedo debuted for the first team in a 3–2 home win over Vitória de Guimarães in Primeira Liga on 10 August. Later, on 2 October, he made his UEFA Champions League debut, scoring his first and winning goal for Benfica in a 3–2 away victory over AEK Athens in the UEFA Champions League group stage, thus ending the former's eight-match losing streak in the competition's group stage.
On 31 January 2019, Semedo was loaned out to La Liga side RCD Espanyol until June. On 8 July, he joined English club Nottingham Forest on a season-long loan, along with Benfica teammate Yuri Ribeiro (the latter on a permanent transfer).
- "Alfa Semedo: O regresso do "Pogba" da Guiné-Bissau" [Alfa Semedo: The return of Guinea-Bissau's "Pogba"] (in Portuguese). Bola na Rede. 8 August 2018. Retrieved 9 January 2019.
- "Moreirense 1–0 Aves". ForaDeJogo. 30 July 2017. Retrieved 6 August 2017.
- [https://desporto.sapo.pt/futebol/primeira-liga/artigos/benfica-explica-quanto-pagou-pelos-reforcos-ferreyra-veio-a-custo-zero-mas-custou-4-me Benfica explica quanto pagou pelos reforços: Ferreyra veio a custo zero mas custou 4 ME] SAPO Desporto
- "Águias oficializam regresso de Alfa Semedo" [Eagles officialise Alfa Semedo's return]. A Bola (in Portuguese). 3 July 2018. Archived from the original on 3 July 2018. Retrieved 3 July 2018.
- Ridge, Patrice (2 October 2018). "AEK Athens 2 Benfica 3: Semedo stunner settles five-goal thriller". Goal.com. Retrieved 19 October 2018.
- Gatopoulos, Derek (2 October 2018). "Champions League: Semedo helps Benfica beat AEK 3-2". USA Today. Retrieved 19 October 2018.
- "Semedo, nuevo jugador del RCD Espanyol" [Semedo, new player of RCD Espanyol] (in Spanish). RCD Espanyol. 31 January 2019. Retrieved 1 February 2019.
- "Nottingham Forest: Alfa Semedo & Yuri Ribeiro join from Benfica". BBC Sport. 8 July 2019. Retrieved 8 July 2019.