The Tigers have re-signed right-hander Tyler Mattison to a minor league deal, according to a report from Evan Petzold of the Detroit Free Press. Mattison was non-tendered by the Tigers last month but now returns to the organization on a non-roster pact that includes an invite to big league Spring Training and will pay him $835K in the majors.
Mattison, 26, was a fourth-round pick by Detroit back in 2021. After spending most of his collegiate career as a starter, he moved to the bullpen upon joining the Tigers organization. While it took time for the righty to adjust to his new role, a strong performance in the Arizona Fall League at the end of his first pro season helped set him on course to take a bigger step forward during the 2023 campaign. In that year, Mattison reached the Double-A level and pitched to a sterling 1.62 ERA in 33 1/3 innings of work as a multi-inning reliever.
Unfortunately, Mattison’s ascent was put on hold when he underwent Tommy John surgery just before the 2024 campaign began. He missed the entire year and did not return to the mound until May 28 of this year. After two months of rehab, the right-hander was finally promoted to Triple-A on July 30 but posted middling results for the Mud Hens upon his arrival in Toledo. Across 20 appearances, Mattison posted a 3.79 ERA with an alarming 17.4% walk rate. That was enough to convince the Tigers to non-tender Mattison last month, even in spite of his previously strong results and solid 25.6% strikeout rate.
The decision to non-tender Mattison was largely motivated by a desire to no longer carry the righty on the club’s 40-man roster. As a player who has not yet made his big league debut, Mattison was of course not yet eligible for arbitration and wouldn’t be making more than the league minimum. Still, that roster spot was valuable and would have forced the Tigers to use one of Mattison’s option years to send him back to the minors. As a result, the team opted to risk him signing elsewhere in free agency for the chance to bring him back into the fold on a non-roster deal.
That gamble paid off, and it could wind up as a win/win scenario for both player and club should Mattison find his way back to the majors. The Tigers will have afforded themselves some additional roster flexibility for the offseason and early part of the 2026 campaign without losing an up-and-coming relief arm from their system, while Mattison will now enjoy a higher salary in the majors than he would have in the event he simply remained on the 40-man all offseason.

Glad they kept him.
I am glad he’s still a Tiger. Nevertheless, his likelihood of being a solid ML bullpen piece is a long shot. Keep working, kid. Ya never know.