Youth career Born in
Haskovo, Temenuzhkov emigrated to
Fraga, Spain, with his parents and four elder siblings at the age of a year and half. He started his youth career in local teams, before joining
Barcelona in 2014 after being recommended by former
Spain international
Guillermo Amor. In 2017, Temenuzhkov featured in
The Guardians '60 of the best young talents in world football' list, with him likened to footballer
Luis Suárez. Temenuzhkov featured regularly for
Carlos Corberán's
Leeds United under-23 side over the course of the 2018–19 season, showing his versatility by playing as a striker and in attacking midfield, that won the
PDL Northern League 2018–19 Season by winning the league, they then became the national
Professional Development League Champions by beating
Birmingham City in the final. He made his professional first team debut on 6 January 2019 during a 2–1 defeat to
Queens Park Rangers in the third round of the
FA Cup, as a 79th-minute substitute for
Tom Pearce. On 24 September 2019 Kun, together with four other Leeds U23 players, signed contract extensions.
Loan moves On 30 January 2020 Kun joined
La Nucía on loan until the end of the 2019–20 season. However the Spanish professional football season was paused in March 2020 due to the
impact of COVID-19. On 5 August 2020, after Leeds' promotion to the
Premier League, Kun joined
Spanish Segunda División B – Group 2 side
Real Unión on loan until the end of the 2020–21 season. He ended the season with three goals in 19 league matches and on 21 May 2021 he confirmed he would return to Leeds and fight for his place in the team. In June 2021, he extended his loan at Real Unión for the duration of the 2021–22 season.
CDA Navalcarnero In August 2022 Leeds United confirmed that Kun was released by mutual consent and he had joined Spanish fourth tier side CDA Navalcarnero. After a stint with
Zamora, he joined
Gibraltar Football League side
Lincoln Red Imps in January 2024. ==International career==