 The move happened after the Steaua's coach saw him play against Standard Liège and thought he could make a good replacement for the injured Victoraș Iacob.Months after playing in the Championnat National for Angers, Théréau made an appearance in the Champions League being substituted on in the 70th minute in Steaua's 1–4 win away to Dynamo Kyiv on 13 September 2006.He was used in all six matches in the group stage without scoring as Steaua failed to progress from the group which also included Real Madrid and Lyon.