The Dutch giants wore the special kit for the first time on Saturday, however the European governing body has ruled it had illegal imagery
Ajax have been banned from wearing their original design for a Bob Marley-inspired kit by UEFA, which says the strip contained imagery that goes against the federation's rules.
The strip, inspired by the song Three Little Birds which has become an anthem for Ajax fans, was introduced for the 2021-22 season and was worn by Ajax for the first time in their Eredivisie victory away to PEC Zwolle on Saturday.
However, the shirt had been changed from the design initially revealed in the summer - and the reason has now been revealed as being down to an obscure rule from the European football governing body.