In January 2017, Janža moved abroad to join Czech side Viktoria Plzeň,[7] and was subsequently loaned out to Cypriot club Pafos.[8] In July 2018, he transferred to Croatian side Osijek.[9]
On 28 June 2019, he signed a two-year contract with Polish Ekstraklasa club Górnik Zabrze.[10] On 21 November 2021, he scored his first goal for the club in a 3–2 win over Legia Warszawa.[11] He became the club's captain ahead of the 2022–23 season. On 15 June 2024, Janža extended his contract with Górnik Zabrze until 2026.[12]
International career
Janža represented Slovenia at youth international levels from under-16 to under-21.
On 7 June 2024, he was selected in the 26-man squad for the UEFA Euro 2024.[15] In the opening match, Janža scored the equalizer in a 1–1 draw against Denmark, which was Slovenia's first goal at the European Championship since their last participation 24 years ago.[16]
Career statistics
International
Scores and results list Slovenia's goal tally first, score column indicates score after each Janža goal.[17]