Sergiu moved to Italy with his parents at the age of 13 and soon became affiliated with Torino under club president Franco Cimminelli in 2003.
[1] After several years with the youth team, he stood out as one of the best players at the prestigious Torneo di Viareggio in 2009, scoring a brace against Bologna.
[2] After making the bench several times for the senior side, he made his Serie A debut for Torino on 31 May 2009 in a game against A.S. Roma when he came on as a last-minute substitute for Tommaso Vailatti.
He was recalled by Torino on 1 February 2011 to play in the Torneo di Viareggio, but his season was abruptly ended after rupturing the ACL in his left knee.
[6] He debuted as a starter on 2 February in the away fixture against Vicenza, remaining on the pitch for the full 90 minutes and showed a great performance for the decisive victory of 2–1 for The Wasps.