Locke suffered a hyperextended knee at training camp practice Wednesday, Calvin Watkins of The Dallas Morning News reports.
Locke went down with a noncontact injury, and he was forced to leave the practice early. The safety appears to have avoided a major injury, and the team's doctors aren't overly concerned. Locke is set to operate as a top rotational piece behind Malik Hooker and Jalen Thompson in the secondary with Dallas this season, and in his absence, Alijah Clark is a top candidate to see an increase in reps at practice.