Spanish newspaper Marca appear to have been caught editing a picture of Michigan Stadium to make it seem as if more Real Madrid fans were in attendance.
Manchester United beat Los Blancos 3-1 in front of 109,318 fans at The Big House, a record for a football match in the US.
Official pictures by Getty Images show the stadium had a majority of fans wearing red shirts - however, an image that appeared on Marca's website show the stadium to have more supporters in white.
Ashley Young, Wayne Rooney and Javier Hernandez scored for Louis van Gaal's team who were most impressive against Carlo Ancelotti's men.
Cristiano Ronaldo played in the final stages but his introduction could not inspire the European Champions to a comeback.
The image has since been taken down from the website, though the paper has made no comment.
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