article: A group of Chelsea fans stormed Arsenal's Emirates Stadium this week in a lighthearted attempt to lay a blue marker down as the Premier League clubs prepare to do battle on Sunday. The four fans labelled themselves the 'C-Team' while wearing Jose Mourinho, Diego Costa, Didier Drogba and Cesc Fabregas masks to hide their identity before parking up outside Arsenal's north London home. As the famous A-Team soundtrack kicks in, a narrator claims: 'In 2004, a Portuguese general known as the special one put together a crack commando unit. The group of Chelsea fans set off blue smoke bombs and covered the Arsenal sign outside the Emirates . A man in a Jose Mourinho mask looks to the camera during the Chelsea Fans Channel prank . One of the men, wearing a Diego Costa mask, celebrates as blue smoke hits the red side of London . 'These men dominated the Premier League from their west London underground. 'Today's mission: To bring a touch of class to the war-torn area known only as the Emirates. 'If you have a problem and no once else can help, maybe you can hire the C-Team.' The two-minute clip then shows the Blues fans displaying large blue and white letters in front of a concrete Arsenal sign before it eventually reads 'Chelsea'. Several blue smoke bombs are then released by the practical jokers before they make a swift exit in their white van. The four practical jokers carry the blue and white letters as they look to make their mark in north London . The group of prankster called themselves the 'C-Team' as they carried out their 'mission' Unfortunately for the pranksters, their hard work was on show for all of 10 minutes before club staff came out and took the 'Chelsea' boards down. The Chelsea Fans Channel prank comes just days before Mourinho's side travel to the Emirates in search of what will be a crucial three points. The Blues know victory against Arsenal on Sunday will all-but secure the Premier League title with Mourinho's side needing two wins from their next two games. Their hard work lasted just 10 minutes before being taken down by Emirates Stadium staff .
highlights: Chelsea pranksters play practical joke outside the Emirates Stadium .
  Four masked men replace Arsenal sign with blue and white letters .
  Chelsea signing is removed by club staff after just 10 minutes .
  Premier League rivals go head-to-head at the Emirates on Sunday .
  Chelsea are currently 10 points clear at Premier League's summit .
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