Manchester United ‘set to hijack’ Arsenal and Liverpool moves for Barcelona’s Alexis Sanchez .

The Dutchman has already sealed the signatures of both Luke Shaw and Ander Herrera this summer as he looks to reshape the United side which failed to qualify for Europe under David Moyes last season.

And with Van Gaal ready to offload flop Marouane Fellaini, Sanchez looks to be another player in his sights.