Gianluigi Donnarumma Milan 2017-2018 Signed Shirt | Beckett 9
Walkouts premium collection
Product details
Proof details 4
Walkouts premium collection
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Beckett graded this Gianluigi Donnarumma signature 9 out of 10, on an AC Milan home shirt from the 2017-2018 season, size XL, signed on the back, on the number. That grade is checkable directly in Beckett's own certified record.
The shirt
This is AC Milan's 2017-18 home shirt, made by Adidas, in green with long sleeves, carrying Donnarumma's signature on the back, on the number. This is an original fanshop shirt from the 2017-2018 season itself, produced at the time rather than reissued since, still in excellent condition with its original tags attached, a size XL piece ready for a collection.
Authentication by Beckett
Beckett has documented this signature under certificate AG004158, with a certificate of authenticity, a letter of authentication, and a grade of 9 out of 10. A One Beckett Medallion hologram sticker, valid through May 2026, seals the certificate to this exact shirt, and a collector can confirm the certificate number directly in Beckett's own database.
The signing
Donnarumma signed this AC Milan shirt on 22 March 2025, in Dortmund, Germany, at night, the marker crossing the fabric plainly on the back, directly on the number itself. Walkouts logs this session under its own proof code, 25GDO20031099, a record a collector can hold against that date and place to confirm the signature belongs to this exact shirt, and no other.
Youngest player to reach 100 Serie A appearances
This shirt sits inside Donnarumma's earliest Milan years: he had already become the youngest goalkeeper to debut in Serie A, at 16 years and 242 days in 2015, and by 2018 became the youngest player to reach 100 Serie A appearances, at 19 years and 49 days. He later joined Italy's national team and won Serie A Goalkeeper of the Year. This shirt anchors a collector to that early season.
What You Receive: The Signed Shirt
You receive the signed shirt, video proof of signing, sent unwatermarked after purchase, a certificate of authenticity, and a letter of authentication.
Why Walkouts
We hand you proof you can check without us. Authentication from the names collectors already trust, our own signing proof captured the moment the marker touched the shirt, and the full chain behind both, so your certainty rests on evidence you hold yourself. We've bought fakes. We know that feeling, and we built Walkouts so you never have to.
View the signing verification here: 25GDO20031099
Certificate number: AG004158
Grade: 9 - Signatures: 1 - Signer: Gianluigi Donnarumma - Item: Jersey
View the certification here: AG004158
Is the signature authentic?
Yes. This shirt is sold as a signed collectible and includes Video Proof, giving you clear reassurance that the autograph was captured at the signing.
When and where was it signed?
The signing took place on 22 March 2025 in Dortmund, Germany. The associated signing code is 25GDO20031099.
What exactly is included with this item?
You will receive one signed AC Milan Fanshop Match football shirt from the 2017-18 season, carrying Donnarumma's number 99 and signed on the back, on the number. It is a long-sleeve shirt in size XL, supplied with a certificate of authenticity and a letter of authentication from Beckett, certificate AG004158.
How should I display or store it?
For best long term presentation, we recommend framing behind UV protective glazing or storing flat in a clean, dry space. Avoid direct sunlight and excessive humidity to help preserve the autograph.
Is the shirt match worn or match issued?
No match worn or match issued claim is made for this product. It is described as a Fanshop Match shirt signed by the player, with proof of the signing.
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