Michael Carrick has insisted Manchester United will not take Crawley Town lightly in Saturday's FA Cup tie. If the Blue Square Premier side prevail at Old Trafford it would be the greatest shock in the competition's history. However, midfielder Carrick maintains that United must show their opponents the utmost respect and approach the game in their usual professional manner to make sure of a place in the quarter-finals. Sir Alex has no wish to be on the wrong end of a massive upset.
