Cowboys rookie LT Tyler Guyton leaves with knee injury

The injuries are piling up for the Cowboys.

They lost their second-round pick, Marshawn Kneeland, on their first defensive series. Kneeland, making his first career start at defensive end with DeMarcus Lawrence and Micah Parsons out, suffered a knee injury. The Cowboys ruled him out.

In the second quarter, left tackle Tyler Guyton, the Cowboys’ first-round pick, injured his knee. It’s doubtful he’ll come back after limping to the x-ray room.

The Cowboys moved Tyler Smith from left guard to left tackle and TJ Bass came off the bench to play left guard.

Dallas leads 6-3 at the end of the first half.