Igor Vujačić

14, Vujačić joined Polish club Widzew Łódź and was immediately assigned to the reserve team.
After returning to his homeland, Vujačić signed with Mogren in the summer of 2014. He spent just half a season at Stadion Lugovi before rejoining his parent club Zeta. Over the following four and a half years, Vujačić established himself as one of the best defenders in the league, amassing 133 appearances and scoring nine goals.
In June 2019, Vujačić signed with Serbian club Partizan and was given the number 5 shirt. Vujačić made the Partizan debut on his 25th birthday, after he came on as a sub during the 3rd round UEFA Europa League qualifier against Yeni Malatyaspor. In his first season, Vujačić mostly came into the game from the bench, he played only 12 competitive games.
Just one month after the start of the new season, Aleksandar Stanojević became the new coach of Partizan and Igor slowly became a regular first team player. He scored his first goal on 21 February 2021 in a 3-0 home win against Radnik Surdulica. One week later Vujačić scored his second goal in a 6-0 away win against Inđija.
On 12 August 2021 Vujačić played a big role in a return match of the UEFA Europa Conference League Third qualifying round against Sochi when he kicked the ball off the goal line in the 103rd minute of extra time and later during the penalty shootout he scored a fourth penalty that took Partizan to Play-off round. In the first game of the Play-off round, Vujačić scored a goal in a 2-1 loss against Santa Clara. In the 54th minute, Vujačić reduces the advantage of the Portuguese. A great action by Partizan started by Bibras Natcho from the free kick, the ball came to Aleksandar Šćekić who headed it to the other side to Vujacić. He headed the ball into the net and made the final score 2-1.
On 30 June 2023, Partizan announced that Vujačić left the club for the Russian Premier League side Rubin Kazan. Rubin announced a three-year contract with Vujačić on 4 July 2023.
Vujačić represented his country at under-19 and under-21 level. He made his full international debut for Montenegro on 7 June 2019, playing the full 90 minutes in a 1–1 draw with Kosovo.