Barcelona will not be allowed to sign any players in 2015 after their appeal against their transfer ban was dismissed by the Court of Arbitration for Sport.

The Spanish club turned to Cas in August after FIFA rejected their appeal to overturn a two-window ban, which was handed to them by world football’s governing body in April due to concerns over the “international transfer of minors.”

But their quest hit a further dead end on Tuesday, meaning they will be unable to bring in any new blood until January 2016.

“The Court of Arbitration for Sport has dismissed the appeal filed by FC Barcelona against the Federation Internationale de Football Association regarding the decision issued by the Fifa appeals committee on 19 August 2014,” a statement from Cas read.

“In such decision, the Spanish football club was sanctioned with a transfer ban for two periods, a fine of CHF 450,000 and a reprimand after it was found to have infringed the Fifa regulations with respect to the registration of a number of minor players.”