Newest Mariners pitcher has sneaky promise beneath obvious wildness

The Seattle Mariners have made an intriguing addition to their pitching roster, signing right-hander Garrett Hill to a minor league contract on February 15, 2025. Hill, who debuted in the majors with the Detroit Tigers in 2022, brings a mix of potential and areas to improve (one of which happens to be a specialty in Seattle) that could make him a valuable asset for the Mariners.​

Hill's journey to the majors began when he was drafted by the Tigers in the 26th round of the 2018 MLB Draft out of San Diego State University. He made a notable impression during his debut on July 4, 2022, pitching six innings and allowing just one run against the Cleveland Guardians.  Over his time with Detroit, Hill showcased a promising strikeout ability, accumulating a 11.0 K/9 rate over 426 minor league innings, though that same swing and miss stuff hasn't translated in his 76 major league innings (6.4 K/9 in 76 innings).

However, Hill's pro career has been marked by a significant challenge. He has struggled with control, issuing 40 walks in his 76 innings (5.1 BB/9) in MLB, which contributed to an elevated ERA of 5.09.  His minor league rate (4.1 BB/9) is still elevated, but manageable. This high walk rate indicates a need for refinement in his command, an area the Mariners' coaching staff will likely focus on.​

The Mariners have a history of identifying and developing under-the-radar bullpen talent. Their ability to transform pitchers with potential into reliable contributors is well-documented. Hill's high strikeout capability aligns with the team's pitching philosophy, and given the Mariners' track record, there's likely optimism that his control issues can be addressed.​

Hill is expected to start the 2025 season with the Triple-A Tacoma Rainiers, providing him an opportunity to refine his skills and make a case for a call-up to the majors. For Mariners fans, Hill represents a low-risk, high-reward signing. If he can harness his control and build upon his strikeout strengths, he could emerge as another successful reclamation project in Seattle's bullpen