Trifunović started to play basketball in his hometown Belgrade, for the Zemun youth selections. In Summer 2015, he joined the Mega Bemax. During the 2017–18 season, he played in Turkey for the junior team of Pınar Karşıyaka, where his father Aleksandar coached the first team.[1]
Professional career
Partizan
In September 2018, Trifunović joined Partizan.[2][3] Prior to the 2018–19 season, he was loaned out to Mladost Zemun. On July 4, 2019, he was loaned out to Mega Bemax for the 2019–20 season.[4]
Trifunović played in Mega Bemax in the first two rounds of the ABA League, after which he left the club dissatisfied with the minutes and the role in the team. The loan was officially terminated on October 18, 2019, after which Trifunović returned to Partizan. On April 24, he declared for the 2020 NBA draft, but later withdrew.[5] On June 27, 2020, Trifunović signed a four-year contract extension for Partizan.[6] On July 19, 2021, he withdrawn his name once again from consideration for the 2021 NBA draft.[7] Finally, he went undrafted in the 2022 NBA draft after becoming automatically eligible.
During the 2022–23 season, Trifunović for the first time played in EuroLeague where Partizan was eliminated from the Real Madrid in tight playoffs series. Over the season, Trifunović averaged 1.7 points over 35 games. Partizan ended the 2022–23 season by lifting the ABA League championship trophy, after 3–2 score against Crvena zvezda in the Finals series.[8]
The 2023–24 season was deemed to be unsuccessful for Partizan as they finished the season without lifting any trophy.[9]
On July 26, 2024, Trifunović amicably parted ways with the Serbian powerhouse after six years together.