Tyrann Mathieu - Wikipedia
Addition of Tyrann Mathieu adds defensive chess piece to Chiefs defense, NFL News, Rankings and Statistics
Barnwell's 2019 NFL free-agency and trade grades - Tracking every big signing and move - ESPN
Tyrann Mathieu holds Chiefs' defense to a championship-level standard - Arrowhead Pride
Six Seahawks Named to NFL Network's Top 100 Players List
Safety Tyrann Mathieu goes after 'toxic' Chiefs fan base
Arizona Cardinals 2013 season in review: A sneak peek at what's to come - Revenge of the Birds
He's a guy that you feel': On the relentless positivity of Tyrann Mathieu, the heart of the Chiefs' defense - The Athletic
Chiefs Offseason 2022: Prioritizing the team's needs heading into free agency - Arrowhead Pride
Houston Texans News: January 9, 2020 - Battle Red Blog