Some scary stuff in today’s game, as outfielder Tyler Colvin was hit in the chest by a flying piece of bat, which pierced his skin and caused some internal damage. Doctors are working to prevent a collapsed lung. Needless to say, Colvin’s season is over.

The freak accident happened as Colvin was running the bases in the second inning. Catcher Welington Castillo’s bat broke as he was hitting a double to left field.

Colvin looked around from near third base to see where the ball was going and Castillo took off running. Neither one of them realized what was about to happen.

When Colvin saw the ball was going to be a hit, he turned just in time to feel the sharp edge of a bat piercing his chest. He still scored and apparently tried to shrug it off.

“I thought he was fine,” pitcher Jeff Samardzija said. “We were kind of joking around; I saw a little something on his shirt. I said, ‘Hey, man, maybe you better get inside.'”

A team spokesman said Colvin suffered minimal external bleeding, though the depth of the wound was not immediately clear.

Colvin will remain in the hospital for at least a few days, but the extent of the injury is still somewhat unknown.