Liberati began his single-seater career in 2008 by participating in the Formula Azzurra series in his native Italy.

During the season he took victories at Magione and Misano along with five further podiums to win the title by 12 points from Greek driver Stefanos Kamitsakis.

[2] He contested the first four rounds of the season before moving to rival outfit Lucidi Motors to replace fellow Italian Marco Zipoli, who in turn took Liberati's seat at BVM–Target.

[3] Liberati continued in the series in 2010, switching teams to join Andrea Caldarelli and Samuele Buttarelli at the Prema Junior squad.

He finished level on points with the EuroInternational entry of Gabriel Chaves, but was classified ahead of him on countback.