Update: Williams MRI and x-ray came back negative but he will be listed as day to day.
The Cowboys, who are back at training camp in San Antonio, were taking part in one-on-one's Sunday morning.
Williams injured his wrist during the morning workout.
Cowboys owner and general manager Jerry Jones told reporters that Williams said his wrist was sore.
Williams missed the afternoon workout because of the injury.
The Cowboys are set to play the Tennessee Titans at home in Arlington on Friday night.
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