Red Sox Slugger Triston Casas Sidelined with Abdominal Strain

Young Boston star's injury woes continue as he faces another extended absence.

Apr. 15, 2026 at 12:22am

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A cubist, geometric painting depicting a baseball player's motion broken down into overlapping planes of color and shape, conveying the disruption and setbacks caused by Triston Casas's latest injury.Casas's injury woes continue to disrupt the Red Sox's plans for their young slugger.Boston Today

Boston Red Sox first baseman Triston Casas has been diagnosed with a left abdominal strain after undergoing an MRI, sidelining the young slugger for an indefinite period. This latest setback comes after Casas previously dealt with a rib injury that impacted his 2024 season, further complicating the Red Sox's plans for their first base and designated hitter positions.

Why it matters

Casas was expected to be a key part of the Red Sox's lineup, providing power and protection for star catcher Willson Contreras. His extended absence leaves a hole in Boston's offense and could force the team to explore trade options or other roster moves to compensate for the loss of Casas's bat.

The details

Red Sox manager Alex Cora revealed that Casas's current injury is unrelated to his previous rib issue, but the team is treating it similarly to an oblique strain. Cora noted that Casas will need to go through a full ramp-up and progression, similar to spring training, before returning to action, indicating the 23-year-old will be sidelined for a significant period.

  • On April 11, Red Sox manager Alex Cora said Casas would be out for 'a while' pending MRI results.
  • On April 15, the Red Sox announced Casas had been diagnosed with a left abdominal strain.

The players

Triston Casas

A 23-year-old first baseman and slugger for the Boston Red Sox who has dealt with multiple injuries over the past few seasons, hampering his development.

Alex Cora

The manager of the Boston Red Sox, who provided updates on Casas's injury status and timeline for return.

Willson Contreras

The star catcher for the Boston Red Sox, who has been tearing the cover off the ball but could use Casas's bat for added depth and protection in the lineup.

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What they’re saying

“'Nothing to do with the previous (rib injury). He's down, obviously. ... They're treating it like an oblique injury. Obviously, whenever he's ready, he's ready. And we have to go do the ramp-up again and the whole thing, and then obviously going through the progression of like, quote-unquote, spring training. So it's gonna be a while.'”

— Alex Cora, Manager, Boston Red Sox

What’s next

The Red Sox will need to determine a timeline for Casas's recovery and ramp-up process, as well as explore potential roster moves or trade options to address the hole in their lineup during his extended absence.

The takeaway

Triston Casas's latest injury setback is a significant blow to the Red Sox, who were counting on the young slugger to be a key part of their lineup. The team's depth at first base and designated hitter will be tested, and they may need to get creative to compensate for Casas's absence as he works to recover and regain his form.