Cowboys receiver Terrance Williams left after the first play from scrimmage. Kristi Scales, the team’s radio sideline reporter, reported Williams has a lower left leg injury.
The Cowboys updated soon after that Williams has an ankle injury, and his return is questionable.
Williams, who has never missed a game in his five seasons, went into the locker room for further evaluation.
The Cowboys dressed only five receivers, with rookie Noah Brown inactive.
UPDATE 8:59 P.M.: Williams returned with 5:23 left in the first quarter, missing most of the Cowboys’ first series and all of the second.