 The club was promoted in his first season into the Serie A and Pfertzel played 84 matches in that league.The highlight of his AS Livorno period was the qualification to the UEFA Cup in the 2006–07 season.Since Juventus F.C., S.S. Lazio and ACF Fiorentina were punished because of the 2006 Serie A scandal, Livorno climbed from the ninth to the sixth spot and was allowed to play in the 2006–07 UEFA Cup.