3. Jerome Boateng
The former Manchester City defender failed to live up to expectations during his season at Manchester City; however, the Germany international has been integral to the stunning success of the Bavarians over the past few campaigns.
His physicality and calmness on the ball are his key strengths, but his versatility could make him an excellent signing for Louis van Gaal.
Capable of playing at centre-back and on either flank at full-back, Boateng could provide plenty of options in defence for the Dutchman.