He was a member of the Crvena zvezda under-18 team that lost to Real Madrid in the 2014–15 Euroleague Next Generation Tournament Final.

[5] In his senior year, he averaged 8.0 points, 7.0 rebounds, and 3.0 blocks per game, earning him All-County First Team honors.

In January 2021, Popović parted ways with the FMP to sign with Chemidor Qom of the Iranian SuperLeague.

[18] On 16 January 2023, Popović signed with Lietkabelis Panevėžys of the Lithuanian Basketball League (LKL) until the end of the season.

[19] Popović was a member of the Serbian under-17 team that won the bronze medal at the 2014 FIBA Under-17 World Championship in Dubai, United Arab Emirates.