West Ham were forced to scrap a special FA Cup kit as the logo was too big, according to the Sun.
The club announced to the fans they would wear a special Thames Ironworks navy blue strip for their cup campaign.
However, regular kit was used for their 5-0 loss to Manchester City on Friday.
It has now been affirmed the Thames Ironworks equip repudiated FA controls.
Hammers vice-chairman Karren Brady tweeted: “It’s a shame as we love that kit.”