Thomas Vermaelen (Arsenal)
Though the Belgian has barely featured in the Gunners starting eleven over the past 18 months there is no denying his talents and a move to fill the void left by departing veterans Rio Ferdinand and Nemanja Vidic with the Arsenal man is a sensible option to consider.
Available for around £12m the former Ajax man is a no-nonsense defender who can fill in at both centre-back and left-back and has the experience to help Man United in their push to re-establish themselves on the Premier League after a disastrous campaign in 2013/14.
Arsene Wenger appears to have little qualms when it comes to selling to a Premier League rival, as evidenced by the mountain of talent he has happily sold to Man United’s local rivals Man City.