Rangers are set to have more than DOUBLE of their original 9,500 fans in the stadium to face Frankfurt.
It's believed around 20,000 supporters will be in the Ramon Sanchez-Pizjuan Stadium for the Europa League final.
The Light Blues were handed less than 10,000 briefs for Seville in the UEFA ballot.
But club bosses believe diehard fans have managed to secure thousands of extra tickets, report the Daily Record.
As well as buying gold-dust tickets from supporters of other teams whose clubs never made the final, Rangers fans have also purchased matchday tickets from tout websites and a second UEFA ballot.
The second ballot was a batch of tickets for the Euro showpiece which were rejected by sponsors, such as Heineken and Hankook.
Rangers fans have been arriving in huge numbers over the weekend with thousands more making the journey to Spain via any route possible between today and Wednesday.
Giovanni van Bronckhorst and Co are just potentially 90 minutes from landing a major European trophy and becoming club legends in the process.
They've defeated the likes of Borussia Dortmund and RB Leipzig on their journey to the final with just Frankfurt now standing in the way of European glory.
Victory in Seville would also land Rangers a place in the Champions League group stages for next season with a top seed in the draw.
Rangers skipper James Tavernier is NOT surprised they've reached the final hurdle as they aim to go that one huge last step.
Speaking to UEFA's official website, he said: "We've come together so well, and we've been pushing each other on and it's no surprise we're in the Final.
"We thoroughly deserve it because we push each other every single day to better ourselves.
"You want to compete with the best teams in Europe. It sets a marker where you want to get to as a minimum, you want to beat that, and we've done that.
"Funnily enough, I had a conversation a couple of weeks ago with Connor (Goldson) and I said, 'We've got a good chance of this’.
"We've beaten Dortmund and you've got to back yourselves. We're playing against another team that's knocked out another favourite in the competition: West Ham are in the Premier League.
"So we'll know to respect (Frankfurt), because they've earned the right to be in the final, but we'll fully back ourselves going into a one-off game."
