The 23-year-old has signed a four-year deal with the Cowboys which will see him stay with the club until the end of the 2017 season worth a reported $8.9m (£5.2m), while the deal has the option of an extra season.
Dallas Cowboys sign first-round Draft pick Zack Martin
The Dallas Cowboys confirm that they have signed their first-round Draft pick Zack Martin as the 23-year-old pens a four-year deal with the club, with the option of a fifth.
Sean Lee suffers knee injury>
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