Boston Red Sox first baseman Triston Casas suffered a ruptured tendon in his left knee and is out for the remainder of the ...

Boston Red Sox first baseman Triston Casas suffered a ruptured tendon in his left knee and is out for the remainder of the ...

The 25-year-old Casas ruptured his patellar tendon running to first on a ... After laying on his back in pain -- not moving the knee -- he was carted off on a stretcher before being taken to ...

The 25-year-old Casas ruptured his patellar tendon running to first on a ... After laying on his back in pain — not moving the knee — he was carted off on a stretcher before being taken ...

Red Sox 1B Triston Casas Out for Rest of Season After Rupturing Left Knee Tendon BOSTON (AP ... The 25-year-old Casas ruptured his patellar tendon running to first on a slow roller up the ...