Manchester United signing Javier Hernandez is facing UK work permit trouble.

The Sun says the Mexican striker, 21, faces a hearing this week and United are praying they will be given special dispensation by the Home Office.

Hernandez gave English fans a glimpse of his talent during a cameo performance for his country at Wembley on Monday.

But he does not meet the regular criteria to be granted a permit as he has not played in 75 per cent of the games for Mexico's senior team in the last two years.

So United plan to highlight his 'exceptional ability' as their reason for trying to sign him.