Depth at cornerback was already a concern for the Cowboys. They had few answers at fourth cornerback behind starters Mike Jenkins and Terence Newman and nickel back Orlando Scandrick.
The concern only increased last week when Scandrick fractured his finger, sidelining him until at least training camp.
The injury presents an opportunity for rookie Jamar Wall or veteran Cletus Gordon to step in.
Until then, the Cowboys are going to work safety Alan Ball as the slot guy in the nickel, even though he is competing with Mike Hamlin for the starting spot at free safety.
"He needs to play other positions, that is one of his strengths," coach Wade Phillips said of Ball. "He is versatile as a second nickel, as well as a safety."
If Ball is the starter at safety, then the Cowboys would bring Hamlin off the bench to play deep safety and use Ball on the slot receiver. Unless someone else steps up, Ball is going to be the second nickel cornerback behind Scandrick when teams go four-wide against the Cowboys.