Real Mallorca have failed in their bid for UEFA to overturn their Europa League ban.
UEFA announced earlier this month they had denied the Spanish side entry to the upcoming season's competition after deeming that they had fallen foul of financial regulations relating to their debts.
Mallorca appealed the decision, with La Liga rivals Villarreal standing by ready to take their place in the competition, but UEFA have now announced the decision would not be overturned. The club may now turn to the Court of Arbitration for Sport.
A statement from the European governing body said: "The UEFA Appeals Body has today dismissed the appeal lodged by the Spanish club RCD Mallorca and upheld the UEFA Control and Disciplinary Body's decision not to admit the Spanish club to the UEFA club competitions for the 2010/11 season.
"On 22 July 2010 the UEFA Control and Disciplinary Body ruled that the necessary admission criteria...had not been fulfilled, as the licence granted to the club was not done so in accordance with the UEFA Club Licensing Regulations.
"Among the expert reviews on which the decision of the UEFA Control and Disciplinary Body was based, the conclusion of the Club Financial Control (CFC) Panel was of particular importance. The CFC Panel...is the independent body which, among other things, has the task of assessing whether licences have been correctly awarded and that clubs have fulfilled their obligations as defined in the UEFA Club Licensing Regulations.
"At its meeting on 14 July 2010, the CFC Panel unanimously concluded that the licence had not been correctly awarded to RCD Mallorca and that the club did not sufficiently fulfil its financial obligations."
Meanwhile, the Balearic Island club posted a statement on their website, rcdmallorca.es, seemingly vowing to take the matter to CAS. However, that was swiftly replaced by a more ambiguous statement saying their lawyers will consider the matter before the club makes a decision on their next move by Tuesday next week.