[2] Mathis began his college career playing for the TCU Horned Frogs.

[6] Following the end of the season Mathis entered the NCAA transfer portal.

The pick was previously traded to the Rams by the Tennessee Titans in exchange for Robert Woods.

[14] On August 30, 2024, Mathis was signed to the New England Patriots practice squad.

[17] On November 22, 2024, Mathis was signed to the Philadelphia Eagles practice squad.