Replays showed Casas hitting first base hard with his right foot then tripping over the foot of first baseman Ty France.

With Triston Casas out for the season with a ruptured left patellar tendon, the Red Sox are deciding how to proceed at first ...

The one thing the Red Sox know about their situation at first base is that Triston Casas won’t play for the rest of the ...

Boston first baseman Triston Casas will require surgery and likely is done for the season after suffering a ruptured left ...

The 25-year-old suffered the injury running to first on a slow roller in Boston's win over the Twins on Friday night.

Casas’ knee gave out Friday as he was running to first base in the second inning of Boston's 6-1 win over the Minnesota Twins ...

As the Red Sox played Romy Gonzalez at first base for Saturday’s game against the Twins and called up Abraham Toro to help ...

The Boston Red Sox have lost first baseman Triston Casas with a knee injury. They could replace him with former New York ...

BOSTON — Red Sox chief baseball officer Craig Breslow confirmed what had been assumed Saturday: first baseman Triston Casas ...

Triston Casas suffered the injury when he beat a throw to first in Friday's game, getting stretchered off the field afterward ...