At the Belgrade outfit, he was an everpresent defensive figure (also contributing with ten league goals during his spell), as the team won one cup and the first edition of the championship after the creation of Serbia and Montenegro, with Partizan leading second-placed neighbours Red Star by 14 points, whilst only conceding 20 goals in 36 matches.
Vujačić then joined Sporting CP, winning the Portuguese Cup in the only season in which he was a regular starter (29 matches, two goals).
He retired from football in 1998 at the age of 34, after a short spell in Japan with Vissel Kobe.
Vujačić made his senior national team debut for SFR Yugoslavia on 27 May 1989, in a friendly match against Belgium (1–0 loss in Brussels) – he played the entire second half.
[4] Following his retirement, Vujačić served as scout for Manchester United,[5] and was responsible for bringing Nemanja Vidić, Zoran Tošić and Adem Ljajić to the club's attention.