He signed this with a pen.
Kansas City Chiefs Tyrann Mathieu Autograph Signing 9-10-2019
Tyrann Mathieu Autographed Memorabilia
Pedro Martinez Autographed and Framed Boston Red Sox Jersey
Tyrann Mathieu Memorabilia, Autographed Tyrann Mathieu
Tyrann Mathieu Memorabilia, Autographed Tyrann Mathieu
Tyrann Mathieu Memorabilia, Autographed Tyrann Mathieu
Tyrann Mathieu Memorabilia, Autographed Tyrann Mathieu
Kansas City Chiefs Tyrann Mathieu Autograph Signing 9-10-2019
Tyrann Mathieu Signed Kansas City Chiefs Jersey (JSA COA) AKA
Custom on-field style jersey. Everything sewn on, size XL. Hand-signed by Tyrann Mathieu. The signing of this item was witnessed by JSA.
Tyrann Mathieu Signed New Orleans Saints Jersey (JSA COA) AKA Honey Badger
Tyrann Mathieu Autographed Memorabilia
JJ Watt Autographed and Framed Houston Texans Jersey