Rangers face playing their William Hill Scottish Cup clash at Tannadice with a much-diminished away backing after one of their main supporters groups called for an organised boycott.

The Ibrox club were today paired with Dundee United in the fifth round, the first occasion they have been drawn away against Clydesdale Bank Premier League opposition since they were relaunched as a new company and denied entry to the SPL.

Rangers, who were knocked out of the competition by United twice in the three years before they were consigned to liquidation, have fallen to Second Division Queen of the South and Inverness in the other cup competitions this season, but did beat Motherwell 2-0 in the Scottish Communities League Cup.

The Rangers Supporters Assembly tonight urged fans to participate in a "full boycott".

A statement from the group read: "The Rangers support has waited patiently for the opportunity to send a clear message to those that tried to destroy our club - starve them of their much-needed cash by boycotting this game.

"It must also be remembered the disregard this club had for Rangers supporters when it unashamedly refused to offer refunds to supporters for a game abandoned due to a waterlogged pitch in 2009.

"We also understand the desire to support the team - the fans have demonstrated this to unbelievable lengths of loyalty - but we ask that on this occasion in a one-off display of fan power we show that we have not been beaten or broken."