The Union Bears have released a statement ahead of Rangers' Europa League quarter-final first leg with Athletic Club on Thursday evening.
The Basque outfit travel to Ibrox, aiming to take home a positive result to the San Mames a week later.
Rangers earned their place at this stage of the competition following a dramatic penalty shootout victory over Fenerbahce in the last 16.
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They now face the might of the La Liga outfit, and for the clash, ultras group the Union Bears have urged supporters to 'bring the noise and colour' at the Copland Stairs from 6.30pm onwards:
Pre match information for next Thursday. We also invite those with ID to 3 Cheers Pub from 3pm. pic.twitter.com/Trq8HKVOA4
— Union Bears (@UnionBears_07) April 4, 2025
Before their last-eight clash with Athletic comes into view, Rangers take on Hibernian in the Scottish Premiership later this afternoon.
Barry Ferguson will look to come through the match unscathed, with one eye on Thursday evening.
His side defeated Dundee 4-3 last time out in a topsy-turvy affair at Dens Park, in which Cyriel Dessers came up trumps with the winner in stoppage time.
With Hibs unbeaten in 15 league matches, Rangers can expect a stern test today: "They're [Hibs] pretty well versed in how they play, and I think they've got their success from playing a certain shape," said coach Neil McCann.
"I really can't see them changing it. They've got some really good players, they've got an understanding and a belief about the group.
"They're going to pose a very hard challenge for us at Ibrox, so we need to be ready to get our boys into shape with a plan that we think can bring us three points on Saturday."