Mathis Albert 41 Borussia Dortmund 2025-2026 Signed Football Shirt

This Borussia Dortmund shirt carries Mathis Albert's signature, graded 8 out of 10 by Beckett, a Fanshop Match piece from the 2025-2026 season and a first-ever Beckett-certified example of his autograph.

The shirt

It was signed on 17 March 2026 at England, Manchester, Manchester Airport, size L, and remains independently verifiable through Beckett's own certificate. Made by Puma in Borussia Dortmund's 2025-2026 home colours of yellow and black, this shirt carries Albert's signature beside the number on the back. It is a size L in excellent condition, tags still attached, produced to the same construction quality as the shirt worn on the pitch that season.

Authentication by Beckett

Under certificate AG004071, Beckett has certified this signature with a grade of 8 out of 10. Beckett Authentication Services examines each signature against a Video Spectral Comparator and an extensive exemplar database, led by authenticators with decades of experience in the field, and a collector can confirm the certificate directly through Beckett's own online database.

The signing

This signature was witnessed directly by Walkouts on 17 March 2026 at England, Manchester, Manchester Airport, the moment captured independently of the certificate above. Its own Walkouts proof code, 26MAB20031841, ties this specific shirt to that recording, and a collector can check it against the watermarked stills of the video proof, not against a description of it.

2025-26 Season at Borussia Dortmund

Albert's 2025-2026 season at Borussia Dortmund is the season this signed shirt belongs to. It is played in the Bundesliga, the same competition this shirt's signature is tied to and no other.

At just 16 years and 27 days, Albert was the youngest player at the 2025 FIFA Club World Cup, included in Dortmund's squad for the tournament. Born on 21 May 2009 and playing as a winger and wide attacker, naturally right-footed, he arrived on the club's biggest stage remarkably young.

What You Receive: The Signed Shirt

Your purchase includes the signed shirt, exact video proof of signing, and the certificate showing the grade of 8 out of 10.

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.