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Current Squad: Rafael, Patrice Evra, Alexander Buttner, Fabio (out on loan).
Patrice Evra has consistently been singled out for criticism in the recent past for poor performances at left-back for the Red Devils.
Don't get me wrong, much of it was deserved. But this season he has come close to regaining the form of the 2008/09 season that saw him named in the UEFA Team of the Year.
Rumoured target Leighton Baines is a decent player, but with Evra close to being back to his best, one might bravely suggest that the Frenchman has at least one good season left in him.
Sir Alex may decide to pre-empt another slide in form from him, though, and bring in a replacement, but money may be better spent elsewhere for now.
On the other side of the pitch, there are no real qualms about Rafael—he has had his best season to date in Manchester red.
Bringing in an inexpensive backup might be a good idea—Phil Jones and Chris Smalling aren't as suited to the role as they are to a more central position.
There are youngsters in the squad such as Marnick Vermijl and Michael Keane who are capable, but neither are yet ready for regular first-team football.
One mustn't forget about Fabio either, who is due to return from a loan spell at Queens Park Rangers at the end of the season.
Should United buy?: Maybe