Udinese have signed Montenegro-born defender Nikola Vujadinovic from Bulgaria's CSKA Sofia for an undisclosed fee.
No contract details have been revealed for the 22-year-old former Zeta centre-back, who holds a Bulgarian passport but represented Montenegro at Under-21 level.
Udinese general manager Pietro Leonardi said: "Vujadinovic is the right player to complete our defensive line, given the various competitions the squad will be in this season."
Having finished seventh in Serie A last term, Udinese have already recruited Antonio Langella and Fernando Tissone from Atalanta, Giovanni Pasquale from Livorno, Alexis Alejandro Sanchez from River Plate, and Dusan Basta from Crvena Zvezda.
They kick off their UEFA Cup campaign in the first round.