Hamburg
Loan / 2025 / 2026

Fábio Daniel Ferreira Vieira (Portuguese pronunciation: ; born 30 May 2000) is a Portuguese professional footballer who plays as an attacking midfielder for Premier League club Arsenal.
He started his career with Porto, where he made 76 competitive appearances and scored ten goals in his first spell, winning two Primeira Liga and the 2021–22 Taça de Portugal. In July 2022, he signed with Arsenal, returning to Porto on loan two years later.
Vieira represented Portugal at youth level. He finished runner-up at the 2021 European Championship with the under-21 team, being voted the tournament's best player.
Vieira played all five matches as Portugal finished runners-up to Spain at the 2019 UEFA European Under-19 Championship in Armenia. In the group phase against the same team on 17 July, he earned a 1–1 draw with a free kick in Yerevan; he and teammate Félix Correia were named in the Team of the Tournament.
On 14 November 2019, Vieira won his first cap for the under-21 side, being booked in the 0–0 friendly home draw with Slovenia. Five days later, he scored once and provided one assist in a 3–2 victory in Norway in the 2021 UEFA European Championship qualifiers. He was voted best player of the finals in Hungary and Slovenia, featuring in all six games and netting once for the runners-up.
Loan / 2025 / 2026
2022 / 2027
Permanent / 2020 / 2022
Permanent / 2019 / 2021


2023 / Arsenal

2021-2022 / FC Porto

2021-2022 / FC Porto

2019-2020 / FC Porto