Pušica started to play basketball in his hometown Belgrade, for the Partizan youth selections.
In 2013, Pušica was recruited to attend a prep school in Kansas, U.S., Sunrise Christian Academy in Bel Aire, a suburb of Wichita. During the 2013–14 season, he averaged 9.3 points and 5.0 rebounds per game.[1]
College career
San Diego Toreros (2014–2016)
In the Toreros' 2014–15 season, Pušica appeared in 30 games with one start and averaged 4.6 points per game to go along with 2.1 rebounds and a team-leading 74 assists. In the Toreros' 2015–16 season, Pušica appeared in 30 games making 15 starts and averaged 8.3 points per game to go along with 4.0 rebounds and a team-leading 74 assists.
Northeastern Huskies (2016–2019)
In 2016, was Pušica transferred from San Diego. Under NCAA transfer rules, he had to sit out for the 2016–17 season.[1] Pušica finished his first season with the Huskies as the team's leading scorer with 17.9 points per game, while pulling down 3.6 rebounds per game and dishing out 5.1 assists per game while playing and starting in all 33 games. Also, he added 36 steals while shooting 50.4 percent from the field and 42.7 percent from deep and 80.7 from the free throw line.[1] Pušica appeared in 27 games, including 26 starts in the Huskies' 2018–19 season. He averaged 17.4 points, 3.8 rebounds and 4.1 assists per game.[1]