Dallas SS Barry Church (forearm) and CB Morris Claiborne (groin) both suffered potentially significant injuries on Sunday night.
Dallas will continue to rely on rookie CB Anthony Brown to defend the slot with CB Orlando Scandrick (hamstring) out in Week 6.
Dallas CB Morris Claiborne leads NFL cornerbacks in lowest completion percentage when targeted.
Dallas linebacker Sean Lee played all 56 defensive snaps in Week 1, leading the team with 10 tackles.
The Dallas defense has allowed 179.7 rushing yards per game over the last three weeks.
Dallas cornerback Morris Claiborne (hamstring) missed practice on Wednesday and his Week 15 status is murky at the moment.
With Dallas CB Morris Claiborne set to return this week, DB Byron Jones will move back to safety.
The Dallas defense will focus on stopping Carolina QB Cam Newton in Week 12, who is coming off a career-high five touchdown performance.
The Dallas defense failed to force a turnover in Week 9 and is last among NFL defenses with just four forced turnovers in 2015.
The Dallas defense is last in the NFL in forcing turnovers, severely limiting the upside of the Cowboys D/ST.
The Dallas defense has allowed 100 or more rushing yards in each of their last four games, all losses.
The defense of the Dallas Cowboys has forced just three turnovers in 2015, and zero over their last three games.
The Dallas Cowboys roll into their Week 6 bye with just three forced turnovers this season, good for 29th among NFL teams.
The Dallas Cowboys will host the New England Patriots in Week 5, who lead the NFL in yards per game (446.3) and points per game (39.7).