Red Sox's Triston Casas Progressing After 2025 Season-Ending Injury

The young first baseman is working his way back to the field after a devastating knee injury.

Feb. 17, 2026 at 11:55pm

Got story updates? Submit your updates here. ›

Boston Red Sox first baseman Triston Casas, who missed most of the 2025 season after tearing his left patellar tendon, was seen taking grounders at first base during Spring Training. Casas, a 2018 first-round draft pick, is working his way back and remains hopeful to contribute to the team once he's fully healthy, though his future role is uncertain with the Red Sox's recent trade for All-Star Willson Contreras.

Why it matters

Casas was once considered a key part of the Red Sox's future, but the injury and Contreras trade have raised questions about his long-term fit with the team. His recovery and performance this season will be crucial as he looks to prove he can still be an impact player at the major league level.

The details

Casas tore his left patellar tendon in early May 2025, resulting in a season-ending injury. He was limited to just 29 games that year, hitting .182 with a .277 on-base percentage and .580 OPS before the injury. The Red Sox have since traded for All-Star first baseman Willson Contreras, adding uncertainty to Casas' future role with the team. However, Casas remains confident he can contribute once healthy, saying "When I'm healthy, I fit on any team."

  • Casas suffered the season-ending injury in early May 2025.
  • Casas was seen taking grounders at first base during Red Sox Spring Training on February 16, 2026.

The players

Triston Casas

A 26-year-old first baseman who was drafted by the Boston Red Sox in the first round of the 2018 MLB June Amateur Draft. He missed most of the 2025 season due to a torn left patellar tendon.

Willson Contreras

An All-Star first baseman who the Red Sox traded for this offseason, adding uncertainty to Casas' future role with the team.

Got photos? Submit your photos here. ›

What they’re saying

“When I'm healthy, I fit on any team.”

— Triston Casas (SI.com)

What’s next

The Red Sox will closely monitor Casas' recovery and progress during Spring Training as they determine his role for the 2026 season. His performance and health will be key factors in whether he remains with the team or potentially plays elsewhere.

The takeaway

Triston Casas' comeback from a devastating knee injury will be an important storyline to watch for the Red Sox this season. The team's recent acquisition of Willson Contreras has added uncertainty to Casas' future, but the young first baseman remains confident he can contribute once fully healthy.