The Seattle Mariners are dealing with a significant setback as starting pitcher George Kirby is set to start the season on the injured list due to right shoulder inflammation. This comes as a blow to a rotation that previously boasted four pitchers with over 30 starts last season. Kirby, who was an All-Star in 2023, was expected to lead the staff.

In contrast, Mariners general manager Justin Hollander provided positive updates on Jorge Polanco and Matt Brash. Polanco is 'days away' from returning to play third base following offseason surgery, while Brash is on track for a return by late April after Tommy John surgery. Polanco's previous struggles in 2023 raised concerns, but with a repaired knee, there are high hopes for his resurgence this season.

The Seattle Mariners' starting pitching rotation was remarkably healthy in 2024, with four pitchers starting 30 or more games. However, the bullpen faced significant injuries, particularly to key players Gregory Santos and Matt Brash. Santos, acquired the previous offseason, spent most of the season injured, while Brash missed the entire year recovering from Tommy John surgery. Mariners President of Baseball Operations Jerry Dipoto provided an encouraging update on Brash’s recovery during a Zoom conference, indicating he is ahead of schedule and expects to return around late April, barring setbacks. Brash had a stellar 3.06 ERA in 2023 and is deemed one of the elite setup men in the league. His anticipated return could significantly bolster the Mariners' bullpen as they aim for a stronger performance in the upcoming season.