#3 Right-back
If you ask any Manchester United fan which position they would like to strengthen the most, a majority of them would say right-back. It’s been a long time since United fans heartily accepted a right-back.
The last man to form a real connection with the United fan-base was the Brazilian Rafael, who blossomed under Sir Alex Ferguson. Since then many men have taken up the position but none have been able to fit in the 'world-class' bracket.
Men like Antonio Valencia and Ashley Young have done their best to justify the role, but that can't hide the fact that those players are not natural right backs.
Manchester United do have Diogo Dalot in their ranks, but a proven right-back would definitely be welcomed.
#4 Defensive midfielder
The position of a defensive midfielder is often underrated in a team. But there’s no denying the importance of the person carrying the role of such great responsibility.
A solid defensive midfielder is like a warrior in the centre of the park, like a shield in front of the defenders. Their indispensable presence brings stability to the team.
Nemanja Matic has been good for the Red Devils but his inconsistency has been starkly evident in recent times.
Chelsea has Jorginho, Manchester City have Fernandinho and Liverpool have Fabinho. A formidable defensive midfielder will surely aid United's hopes of securing the Premier League title.