Jose Mourinho is baffled by Alexis Sanchez's problems at Manchester United.
ESPN says Mourinho is privately mystified about Sanchez's drop in form.
The Chilean moved to United from Arsenal in January but has struggled massively since the transfer and has been left out of the team on a number of occasions this season.
It is now being reported that “Mourinho has admitted Sanchez's loss of form 'is a mystery'."
The striker scored his first goal of the season in victory over Newcastle United last week.