As the Seattle Mariners prepare for the 2026 MLB season, the atmosphere is charged with anticipation and a hint of uncertainty. Just days before Opening Day, the team has been hit with significant injury setbacks that could alter their initial plans. The Mariners have been fortunate with their health through Spring Training, but the news of key players on the injured list has raised concerns among fans and analysts alike.
On March 30, 2026, the Mariners announced that J.P. Crawford, who has been the starting shortstop for Opening Day each of the last seven seasons, would be placed on the 10-day injured list due to right shoulder inflammation. This news came as a blow to the team, as Crawford is not only a defensive stalwart but also a vital part of the lineup, having recorded 58 RBIs and four home runs last season. The Mariners expect Crawford to be eligible for activation by April 1, but he will need to get some at-bats under his belt in Arizona before rejoining the team.
In addition to Crawford, rookie pitcher Bryce Miller has also been sidelined, placed on the 15-day injured list due to a left oblique strain. Miller, who had a promising start to his career with a salary of $800,000 last season, is not expected to return until around the first of May. His absence from the rotation is particularly concerning, as he was slated to be a key contributor in the starting lineup. Emerson Hancock will take Miller’s place, stepping into a role that demands immediate performance.
Compounding the Mariners’ challenges, Miles Mastrobuoni is also on the 10-day injured list due to a right calf strain, which he sustained while playing for Italy in the World Baseball Classic. Mastrobuoni had a modest performance last season, hitting .250 with one home run and 12 RBIs across 152 at-bats, but his versatility adds depth to the roster that the Mariners will miss.
As the Mariners gear up for their season opener against the Cleveland Guardians, Logan Gilbert has been named the starting pitcher. Gilbert’s performance will be crucial, especially with the rotation now missing both Miller and the depth provided by Mastrobuoni. The projected Opening Day lineup includes Brendan Donovan, Cal Raleigh, Julio Rodríguez, Josh Naylor, Randy Arozarena, Luke Raley, Dominic Canzone, Leo Rivas, and Cole Young, showcasing a blend of experience and youth.
Leo Rivas is expected to step in as the starting shortstop in place of Crawford, a significant responsibility for a player who hit two home runs last season. The pressure will be on Rivas to perform at a high level, especially in the early games of the season when every win counts. The Mariners’ management will be closely monitoring how Rivas adapts to this new role, as his performance could have long-term implications for the team’s success.
The injuries to Crawford and Miller, both integral to the Mariners’ plans, highlight the unpredictability of baseball and the importance of depth in a roster. As the team navigates these early challenges, the resilience and adaptability of the players will be tested. The Mariners will need to rally together to compensate for the absence of their key contributors, and how they respond will set the tone for the rest of the season.
As Opening Day approaches, the Mariners find themselves at a crossroads. The decisions made in the coming days regarding player health and lineup adjustments will be critical. Fans and analysts alike will be watching closely to see how the team adapts to these challenges and whether they can overcome the early setbacks to make a strong start to the season.
