Manchester United have renewed their interest in West Ham teenager Domingos Quina, with scouts watching the 17-year-old score for Portugal under-19s against Spain this week, sources have told ESPN FC.
Quina, who was born in Guinea-Bissau but represents Portugal, is regarded as one of the brightest young prospects in Europe.
He joined West Ham in 2016 after spending three years with Chelsea's academy.
United, Arsenal and Paris Saint-Germain all considered a move for Quina before he signed for West Ham, but with the midfielder yet to commit to a long-term contract United have stepped up their scouting of him.