article_snippet.sent: Wayne Rooney arrives in London ahead of the Chelsea clash while Ashley Young (right) poses with a fan .
article_snippet.sent: Manchester United midfielder Juan Mata posts a picture on United midfielder Juan Mata official Instagram of the squad's journey to London .
article_snippet.sent: Manchester United boss Louis van Gaal (left) and assistant Ryan Giggs (right) carry United boss Louis van Gaal (left) and assistant Ryan Giggs (right) luggage on Friday .
article_snippet.sent: Van Gaal puts Van Gaal arm around Wayne Rooney during a training session earlier this week ahead of Saturday's game .
article_snippet.sent: United midfielder Mata (right) gets ready to play a pass during a club training session on Friday .