Dallas Cowboys Signing New Cornerback? Roby, Heyward, Top 5 Options

The Dallas Cowboys’ defense sustained a devastating blow this week, as star cornerback Trevon Diggs suffered a torn ACL in practice. Jerry Jones says Diggs is "irreplaceable.'' But just in case? Here are five possible names ...

FRISCO - The Dallas Cowboys' NFL-leading defense absorbed a devastating blow this week as star cornerback Trevon Diggs suffered a torn ACL in practice. Undefeated Dallas moves into Week 3 with a Sunday meeting at winless Arizona with a plan - and a good one - to make up for the loss, with DaRon Bland taking over at corner and Jourdan Lewis manning the slot.

And along the way, owner Jerry Jones has issued a clever quip about how the Cowboys can't really "replace'' the All-Pro Diggs. Said Jones: “You can't do that. That's just not real. That's like saying, 'I want to be Tom Cruise.' You don't replace these irreplaceable players."

Nevertheless, as COO Stephen Jones likes to say, personnel management is a "24/7'' business, and Dallas is obviously on a just-in-case lookout to add help - even while making it clear that for now, not even known commodity street free agent Anthony Brown is being considered.

Are there other likely names? FanSided has named five cornerbacks Dallas could potentially sign: Bradley Roby, Casey Heyward, Cameron Dantzler, A.J. Green and Darius Phillips.

The two guys with the most skins on the wall? That would be Roby and Heyward ... though it is easy to argue that both are so far on the downside of their career that maybe the Cowboys are fine with the aforementioned pair playing opposite the stellar newcomer Stephon Gilmore, and with others like Israel Mukuamu, Noah Igbinoghene and Eric Scott Jr. ready to help.

But just in case? Roby is 31 and played last year with the New Orleans Saints. He's a Fort Worth native and was once a first-round pick. Heyward is 34. He's made the Pro Bowl twice, but that was back in 2016 and 2017 while with the Chargers.

The fact is, there isn't any evidence that at this point Roby and Heyward are superior to what the Cowboys - who are 2-0, having outscored their opponents 70-10 over the first two weeks - presently have on their roster. ... and Bland, Lewis and the rest have earned the first crack at being an accelerated part of the program.