After learning of its FIFA sanctions, Atletico Madrid has lodged an appeal with world football's governing body.
Atletico Madrid has lodged an appeal against its two-window ban on registering new players with FIFA.
On January 14, Atletico and Real Madrid were handed sanctions by the governing body's Disciplinary Committee as a consequence of breaches "relating to the international transfer and registration of players under the age of 18."
After studying the documentation, Atletico has notified the FIFA Appeal Committee of its desire to contest the punishment.
The club has maintained its innocence and has requested the ban be suspended until a decision on the appeal is reached.