Stretford End Flags have arranged a mosaic, spelling out 20Legend across the North Stand lower tier, and require 12 volunteers who are available on the morning of the game.
Prior to the match, against Espanyol on August 2, the volunteers will help lay out mosaic panels on seats. Please note that all volunteers must be in possession of a valid match ticket.
SEF members can register their interest in the members forum, and volunteers selected will receive a packed lunch and a special t-shirt for their help.
SEF is a donation-led fans' group constantly open for new ideas to help improve the Old Trafford atmosphere. If you have any suggestions or wish to donate, please visit www.stretfordendflags.co.uk.