Deliu started his youth career in 2011 at local club Besa as a 14 years old.[1] During the 2012–13 season he played for the under-17 side managed by Ylli Teliti forming a strong duo striker partnership with Regi Lushkja, where in the first half of the season the duo scored 90% off all Besa Under-17 goals.[2]
Besa
He gained entry with the first team in 2014 as he was included by the coach Artan Mërgjyshi to participate in an Albanian Cup match against Veleçiku on 22 October 2014 where he also made his debut by coming on as a substitute in the 46th minute in place of Darlien Bajaziti.[3][4] One month later Deliu made his league debut against Burreli on 22 November 2014 and also scored his first goal for Besa.[5]
He concluded the season with 4 league appearances in total scoring 2 goals and a single Domestic cup appearance.
RNK Split
On 27 August 2015 Deliu signed with Croatian side RNK Split following the recommendation of Sokol Cikalleshi, the fellow Albanian player of RNK Split during the 2014–15 season.[6] Being underage, he wasn't registered until February 2016.