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Mitch Keller Autographed MLB Baseball. This signed item comes with a TSE digital authentication and a 100% Money Back Authenticity Guarantee. Total...

Mitch Keller Signed Pittsburgh Pirates Clubhouse Fitted Hat. This signed item comes with TSE digital authenticity and a 100% Money Back Authenticit...

Mitch Keller Signed Official League Baseball. This signed item comes with TSE digital authenticity and a 100% Money Back Authenticity Guarantee. To...

Mitch Keller Signed Official MLB Breast Cancer Awareness Baseball. This signed item comes with TSE digital authenticity and a 100% Money Back Authe...

Mitch Keller Signed Pitching in City Connect 11X14 Photo. This signed item comes with a Beckett tamper-Proof Hologram, Certificate of Authenticity ...

Mitch Keller Signed Pitching in White 11X14 Photo. This signed item comes with a Beckett tamper-Proof Hologram, Certificate of Authenticity and a 1...

Mitch Keller Signed Pitching in White 8X10 Photo. This signed item comes with TSE digital authentication and a 100% Money Back Authenticity Guarant...

Mitch Keller Signed Pitching in White 8X10 Photo. This signed item comes with TSE digital authentication and a 100% Money Back Authenticity Guarant...

Mitch Keller Autographed Pittsburgh Pirates Authentic White Jersey with "23 All Star". This signed item comes with a TSE digital authentication and...

Mitch Keller Autographed Custom Black Baseball Jersey. This signed item comes with a TSE digital authentication and a 100% Money Back Authenticity ...

Mitch Keller Autographed Custom White Baseball Jersey. This signed item comes with a TSE digital authentication and a 100% Money Back Authenticity ...

Mitch Keller Autographed Pittsburgh Pirates Authentic White Jersey. This signed item comes with a TSE digital authentication and a 100% Money Back ...