#3 Jerome Boateng
Jerome Boateng is surely not the youngest defender available for sale this summer but there is no questioning the abilities of the German centre-back. He has been one of the best players Bayern Munich in the last few years winning the Champions League with them. He also won the FIFA World Cup with Germany in 2014. He has all the experience that Manchester United need in their defence.
At the moment United's defence is prone to error and Boateng's experience and composure could help in steadying this. The lack of leadership in the squad has also been cited as one of the reasons for their struggles in the post-Sir Alex Ferguson years. This is something which Boateng would surely help change. He can be the leader that could lead United even in tough situations.
Bayern Munich President Uli Hoeness has advised the German to leave the club and look for a challenge as it could help his career. There haven't been any comments from Boateng but he is expected to leave the German champions this summer. Boateng will be available for a cheaper price due to his age factor. The former Manchester CIty man will be a bargain as he has a couple of good years left in him. This cheap option could be very helpful for United who are looking to secure their leaky defence who conceded a lot of goals this season.