Mariners Pitching Powerhouse: Seattle Mariners Bryan Woo Autographed White Nike Jersey (Size XL)
Celebrate the rise of one of Major League Baseball's premier young starting pitchers with this Seattle Mariners Bryan Woo Autographed White Nike Jersey. Hand-signed in crisp permanent marker on the back numbering by Seattle rotation standout Bryan Woo, this official Nike size Extra Large home jersey captures the exciting modern era of Pacific Northwest baseball.
Featuring elite fastball velocity and sharp strikeout presence, Bryan Woo quickly established himself as a vital pillar of the Mariners' championship-caliber pitching staff. Crafted in classic Seattle home white with iconic Nike branding and official team styling, this size XL jersey serves as a top-tier centerpiece for fan caves, framed wall displays, sports offices, or Seattle Mariners memorabilia collections. Every signature is guaranteed 100% authentic under the in-person witness standards of James Spence Authentication (JSA).
Ironclad James Spence Authentication (JSA) Witness Certification
To guarantee 100% lifetime market value and complete collector peace of mind, this hand-signed jersey carries top-tier in-person authentication from James Spence Authentication (JSA) under their prestigious Witnessed Protection Program (WPP).
- Authentication Firm: James Spence Authentication (JSA)
- Certification Level: JSA Witnessed Protection Program (An official JSA representative was physically present to witness Bryan Woo sign this exact jersey)
- Certification Type: Serial-Numbered Witnessed Tamper-Evident Security Hologram
- Athlete / Personality: Bryan Woo (Starting Pitcher / Seattle Mariners)
- Item / Size: Official White Nike Seattle Mariners Jersey (Men's Size XL)
- Sport / Theme: Major League Baseball (MLB) / Pacific Northwest Sports History
- Authentication Deliverables: Serial-numbered tamper-evident Witnessed hologram sticker affixed directly to the jersey for instant online database verification.
How to Verify Your Security Hologram
Your authentic Bryan Woo autographed jersey includes digital verification backed by the official JSA Authentication Database.
- Locate Security Serial Code: Find the unique alphanumeric serial number printed on the tamper-evident Witnessed hologram sticker affixed to the jersey.
- Navigate to Verification Portal: Visit the official JSA lookup portal (spenceloa.com/verify-authenticity).
- Input Certification Code: Type the unique serial number into the online verification search tool.
- Review Verified Details: Instantly confirm the matching athlete record, signed item description, witness verification status, and official authentication record.
Risk-Free Shopping & Premium Protective Shipping
- Secure Protective Packaging: Your autographed Nike jersey is neatly folded inside a protective poly sleeve, securely boxed with cushioning materials, and handled with care to ensure it arrives ready for display or framing. Standard ground shipping is completely free.
- Free 30-Day Returns: Shop with total confidence. If you are not completely satisfied with the item's condition or signature clarity upon arrival, return it within 30 days for a full refund—we cover all return shipping costs.
Product Specifications & Details
- Athlete: Bryan Woo
- Team: Seattle Mariners
- Apparel Brand: Nike
- Jersey Color / Style: Home White
- Size: Men's Extra Large (XL)
- Authentication: Serialized James Spence Authentication (JSA) Witnessed Hologram
- Condition: Brand-new / Mint collector condition, ideal for shadowbox framing, offices, or fan caves
