Manchester United acquired Juan Mata in January in a transfer deal with Chelsea, but Louis van Gaal is interested in selling him and Barcelona could be interested.

Louis van Gaal prefers to play with one playmaker behind the main striker, and Wayne Rooney is the clear choice behind Robin van Persie.

United have been linked with a number of names including Borussia Dortmund's Marco Reus and Liverpool target Yevhen Konoplyanka.

United paid £38 million for Mata.