On 29 November 2019, Sadiku signed a first-team contract with Veikkausliiga club HJK.[1] On 27 June 2020, Sadiku made his debut with HJK's reserve team in a league match against TPV after coming on as a substitute in the 74th minute in place of Arttu Eerola.[2]
Honka
On 31 December 2021, Sadiku joined Veikkausliiga side Honka.[3] His debut with Honka came on 8 February 2022 in the 2022 Finnish League Cup group stage against Haka after being named in the starting line-up.[4] Four days after debut, Sadiku scored his first goal for Honka in his second appearance for the club in a 4–0 away win over Lahti in Finnish League Cup.[5]
Rosenborg
On 31 March 2023, Sadiku joined Rosenborg on a five-year deal, for a transfer fee of €700,000 plus add-ons.[6][7] Sadiku scored his first goal for Rosenborg on 24 May 2023, a winning goal in a NM Cup win over SK Trygg/Lade.[8]
Start (loan)
On 4 August 2023, Sadiku was sent on loan to 1. divisjon club Start for the rest of the season.[9] Sadiku suffered an injury late in the season, which required surgery.[10]
Emmen
On 16 August 2024, Sadiku joined Emmen in Eerste Divisie on a two-year deal with a one-year option for an undisclosed fee.[11]
International career
Finland
From 2020, until 2022, Sadiku has been part of Finland at youth international level, respectively has been part of the U17, U19, U20 and U21 teams and he with these teams played fourteen matches and scored two goals.[12]
Kosovo
In October 2022, it was announced by the Kosovan media that Sadiku has decided to represent Kosovo at the international level.[13] On 11 November 2022, he formalizes the decision and accept their call-up for the friendly matches against Armenia and Faroe Islands.[14] His debut with Kosovo came five days after call-up in a friendly match against Armenia after being named in the starting line-up.[15]
Return to Finland
On 30 December 2022, Sadiku unexpectedly decided to representFinland again by accepting their call-up from the senior team for the friendly matches against Sweden and Estonia.[16] His debut with Finland came ten days after call-up in the friendly match against Sweden after being named in the starting line-up.[17]