John Jaso

MLB catcher and designated hitter, Tampa Bay Rays · Baseball - MLB

AI-generated identification · may be incorrect

Before you rely on this

This report was produced by an AI model from a photograph. It is not an authentication, a certificate of authenticity, or an appraisal. Verify important details with a qualified third-party authenticator before buying, selling, insuring, or valuing an autograph. Read the full disclaimer.

John Jaso

Era

Circa 2008-2011, active player career

Item Type

White baseball jersey fabric

Condition

Poor; the signature is heavily faded, smudged, and poorly contrasted against the textured fabric.

Overall Assessment

This appears to be a worn or signed jersey fragment of a minor-star MLB player with significant condition issues. The biggest strength is team association, while the major concern is the severe fading. Next step is to keep it as a personal keepsake rather than investing in paid authentication.

AI Estimated Value

Not an official valuation

$10 to $30 unauthenticated due to the low demand for the player and poor condition on a non-standard item.

AI can make mistakes. This estimate is for general guidance only, not a professional appraisal. Actual value depends on authentication, condition, provenance, and market demand.

Get It Authenticated

JSA or PSA/DNA. Expect around $25 to $40 for basic opinion services, though certification is not financially recommended given the low market value.

Notes

Possibly John Jaso of the Tampa Bay Rays

Identified on 10/9/2026