A strong modern Yorkshire collectible – this Sheffield United 2025/26 Shirt has been hand signed by Kalvin Phillips and comes complete with exact video proof from the signing session and a Certificate of Authenticity. Details. Hand signed by Kalvin Phillips. 2025/26 Sheffield United shirt. Exact video proof of signing. Includes Certificate of Authenticity. Ideal for framing or premium display Signed current-season shirts from high-profile England internationals consistently attract strong interest – particularly when paired with video authentication. Perfect for. Sheffield United supporters. England international collectors. Premier League memorabilia buyers. Local Yorkshire collectors.