Cushing injured his left knee, which is the knee that he tore his ACL in last season. He ended up taking a cart ride to the locker room.
Cushing will undergo an MRI on Monday.
Texans LB Brian Cushing will undergo an MRI tomorrow. Per @JeffDarlington, owner Bob McNair said it's "serious".
— Albert Breer (@AlbertBreer) October 20, 2013