Manchester United boss, Jose Mourinho has told the club's board led by Ed Woodward to sign one of Fiorentina star Nikola Milenkovic or Sampdoria centre-back Joachim Andersen when the January transfer window opens, according to Sky Sports Italia.
Manchester United defence has let in 21 goals in 12 league matches so far this term.
Chris Smalling and Victor Lindelof have been first choice in that position but the Portuguese has little confidence in them and wants reinforcements in January.
The Red Devil's board will hand Mourinho significant funds and the former Chelsea boss has told Woodward to sign Milenkovic or failing that Andersen.
Fiorentina bought Milenkovic from Partizan Belgrade in 2017 and the Serie A giants had turned down a £36million move for him last summer.
For Andersen, he has emerged as a growing talent in Italy since his move from Twente to Sampdoria
Juventus and AC Milan have also shown interest in the 22-year-old, while Tottenham are also thought to be admirers.