Primera Liga side Sevilla have asked Uefa offer them a different date for their Uefa Cup quarter-final home leg against Tottenham Hotspur.
The game is currently scheduled to be played on 5th April, but that coincides with a major religious festival in Seville, when floats, processions and more than a million people are expected to throng the city.
A spokesman for Sevilla said: "We have asked the Spanish Football Federation to request a new date from Uefa.
"It's all down to security reasons. And we have informed Tottenham."
Uefa have also confirmed that the Spanish Football Federation have contacted them about the possibility of switching the date of the match.
The matter is now in the hands of Uefa's professional football division, which will meet this week to discuss the issue.
"There will be several meetings. There is no deadline for us to give an answer," a Uefa spokesman said.
"But Uefa will try to accommodate both parties [Sevilla and Tottenham], to get the very best decision."
Goal.com - Sevilla Request New Date For Spurs Match