Terrance Williams was held out of practice with a back injury, while rookie Zack Martin was designated as limited with a foot problem. NFL teams are required by rule to list the area of the injury, though they don’t have to specify what it is.
Fortunately for the Cowboys, both absences seem like more of the precautionary type. Williams’ injury is a bruise suffered during the week, while Martin strained his foot. Neither injury looks likely to force either player out of the season opener against San Francisco.