On the Texans’ second play from scrimmage, Cowboys defensive tackle Maliek Collins‘ helmet hit Miller squarely in the knee. Miller landed awkwardly.
Texans’ medical personnel didn’t need long to ask for the cart.
Miller appeared distraught, head in his hand. He kept his head lowered as teammates surrounded him once he was helped to the cart.
The Texans recently traded with Cleveland for running back Duke Johnson.
UPDATE 7:38 P.M. ET: Starting right guard Zach Fulton also was carted off.