'We want Glazers out!'
#EmptyOldTrafford has been gathering momentum as frustrated Manchester United fans plan to boycott the Liverpool game in the latest show of anger at the club's American owners.
Only last season the club's supporters made headlines as they stormed Old Trafford prior to their Premier League clash with Jurgen Klopp's side.
That game was postponed as fans poured onto the pitch and even attempted to gain access to the dressing rooms, furious at their owners' attempts to join the breakaway European Super League project.
So, from chickens to beach balls and a bag full of manure, here's some of the most memorable fan protests we've ever seen...