Born in Santa Maria de Lamas, Aveiro District, Américo spent the vast majority of his professional career with F.C. Porto, competing in a total of 13 seasons in the Portuguese top division and appearing in 191 league games. With his only club he won the 1959 national championship, and the 1968 domestic cup.
Américo made his debut for the Portuguese national team on 29 April 1964, in a 3–2 friendly win with Switzerland. He was selected by manager Otto Glória for his 1966 FIFA World Cup squad, but remained an unused bench player for the eventual third-placed side.
- Profile at Zerozero
- Américo Lopes profile at ForaDeJogo
- Américo Lopes at National-Football-Teams.com