Career
Club
Lyubenov signed with Chernomorets in June 2007 for a free transfer from Naftex Burgas. After being released by Chernomorets, in February 2009 he signed a contract with Polish side Arka Gdynia. The midfielder/winger played for PFC Nesebar, Marek Dupnitsa, Levski Sofia, Rodopa Smolyan, Litex Lovech and Naftex Burgas.