The iconic Holy Trinity statue at Old Trafford of George Best, Denis Law and Bobby Charlton is to be protected by organisers of the large anti-Glazer protests that will take place before Sunday's game against Liverpool.
Up to 10,000 United fans are expected to converge on the stadium from 2pm calling for the club's American bosses to step down and be replaced by a new model that would give fans ownership and voting rights.
Demonstration leaders were worried by aspects of last week's spontaneous protest, which saw some supporters clamber on the statue and place green and gold scarves over the three United legends.