He appeared in 309 Primeira Liga matches over 17 seasons, representing Rio Ave and Boavista.
After his retirement in 1998, at nearly 36, Alfredo served as goalkeeping coach for his last club as it achieved its only national league conquest in 2001.
During his playing spell with the Porto side he won four major titles in the 90s, two Portuguese Cups and as many domestic Supercups.
In the 2009–10 season, shortly after leaving Boavista, Alfredo returned to his first team Rio Ave, again being in charge of their goalkeepers.
[2] Alfredo earned three caps for Portugal in two years, and was in roster for the UEFA Euro 1996 tournament.