Manchester United legend Gary Neville feels their top four hopes hinge on the form of Angel di Maria.
Neville wrote in the Telegraph: "He has come to United when he did not want to leave Madrid, has suffered the trauma of a burglary, and started to work for a new manager while playing in a team that is still in a 'storm' phase of development.
"If United are to achieve their aims this season, primarily Champions League qualification, Di Maria is going to have to rid himself of the complexities that have emerged over the past eight months and escape the demons that are playing on his mind."