Sevastian Iovănescu, also known as "Bebe" was born on 2 October 1953 in Ghelmegioaia, Romania, starting to play junior level football in 1968 at CFR Caransebeș, moving two years later at Steaua București.
[1][4] Iovănescu made his debut in European competitions in the 1978–79 UEFA Cup edition when he helped the team eliminate Panathinaikos in the first round with a 5–1 aggregate victory.
[1][5] In the following round they met Valencia led by Mario Kempes, earning a 2–1 win in the first leg, however they lost the second one with 5–2 in which he scored once and provided an assist for Doru Toma's goal, thus the campaign ending.
[1][3][7] In the following season they passed AEK Athens in the first round of the 1979–80 European Cup, the team being eliminated in the following one by title holders and eventual winners, Nottingham Forest.
[1][2][3][10] Sevastian Iovănescu made one appearance at international level for Romania, playing on 13 May 1979 under coach Florin Halagian in a 1–1 against Cyprus at the Euro 1980 qualifiers.