Libardi was born on 27 August 1942 in
Câmpulung-Muscel and began playing football at Minerul Câmpulung. His first performance with
The Miners was reaching the
1972 Cupa României final, where coach
Eugen Iordache used him the entire match in the eventual 2–0 loss to
Rapid București. Libardi eventually won the competition two years later after a 4–2 victory against
Politehnica Timișoara in the
1974 final, as coach
Traian Ivănescu used him the full 90 minutes, helping Jiul win its first trophy. Afterwards he played in both legs against
Dundee United in the first round of the
1974–75 European Cup Winners' Cup which was lost with 3–2 on aggregate. In May 1975, during a Jiul –
Politehnica Iași home game, the wooden stand of the
stadium started to burn due to a cigarette thrown into a pile of seed husks. Libardi, along with teammates
Gogu Tonca and
Andrei Stocker jumped in to help the firefighters extinguish the fire. Libardi was Jiul's captain ten years from 1965 until 1975, a period in which he appeared in 238 Divizia A games and scored 47 goals. His last appearance in the competition occurred on 29 June 1975 in a 2–1 away loss to
Universitatea Cluj. ==International career==