Morfeo subsequently began his professional career when he was promoted to the Atalanta B.C. senior side, making his Serie A debut with the club later that year, at the age of 17, on 19 December, in a 2–1 home win over Genoa. he scored his first two goals for the club after coming on as a substitute against Lecce, helping Atalanta to come back from behind to earn a 3–3 draw; he finished the 1993–94 season with 9 appearances and 3 goals.