In the 2004–05 Serie A campaign, with Luigi De Canio as head coach, Siena struggled for long periods of the season, languishing in the relegation zone for a great part of the campaign, and with the team drawing far too many games and barely recording any wins, they looked almost certain to be relegated. However, a resurgence of form towards of the end of the season gave them hope, and a 2–1 win against already relegated Atalanta on the last day saw them secure safety and an acceptable 14th place in the table.