Just who is Douglas Costa?

AS eventful as things on the pitch at Old Trafford were things off it.

And Alex Ferguson’s presence in the stands took the gaze upwards and revealed the presence of an unexplained visitor in the directors’ box: Douglas Costa of Shakhtar Donetsk.

United officials were unable to shed any light on why the 20-year-old Brazilian was present, although Costa was surrounded by enough advisors to suggest he had not merely excused himself from duty with Shakhtar to watch the team so heavily linked with him a couple of years ago because he fancied a day out.