Career
He is best known for his exploits in the 1982 Africa Cup of Nations which saw him lift the trophy for the second time in his career. During his career he played in Ghana, Gabon and of Korea. He was given the nickname Jair, due to a similar style of play to the Brazilian player Jairzinho.
At the club level, Alhassan played for Hearts of Oak in the domestic football league.
He later played in United Arab Emirates before joining First Rate (at Lloyd's)-Ahly in Egypt for a short period only due to his long term injury problems. Alhassan made several appearances for the Ghana national football team, including qualifying matches for several Fédération internationale de football association World Cups.
Four years later he helped Ghana regain the title successfully, being the top scorer of the tournament with four goals, including two against Algeria in the semifinal and one in the final against hosts Libya.