Radivojević was born in Prokuplje and started playing tennis at the age of five in her hometown of Blace.

[2] Radivojević made her junior Grand Slam debut at the 2021 French Open.

She lost both of her matches in the first round – in singles, she was defeated by lucky loser Viktoriya Tomova,[4] while in doubles, partnering compatriot Ivana Jorović, they lost to Dalila Jakupović and Yana Sizikova.

[5] She earned her first Billie Jean King Cup nomination in April 2021, against Canada in the 2020–21 Play-offs for the 2022 qualifying round but did not play in the tie.

[6] She played her first matches for Serbia Billie Jean King Cup team in April 2022 in Europe/Africa Zone Group I, while her lifetime win-loss record stands at 8–12.