Head coach Doug Pederson announced on Monday that Ron Brooks' season is over after the slot cornerback ruptured a tendon in his right quad during Sunday's win over the Vikings.
The Eagles plan to move Malcolm Jenkins into the slot, a role that the Pro Bowl safety played last season, and have Jaylen Watkins man the safety spot in subpackages.
The good news is that cornerback Leodis McKelvin, who missed three of the previous four games with a hamstring injury, came out of the game "exceptionally well," according to Pederson.
Philadelphia will need as many options as possible in the defensive backfield with the Dallas Cowboys expected to have wide receiver Dez Bryant back in the lineup. Bryant has missed the past three games with a knee injury. In nine career regular season games against the Eagles, Bryant has 49 catches for 775 yards and eight touchdowns. Rookie quarterback Dak Prescott has flourished despite Bryant's absence with the fifth-best passer rating in the NFL at 103.9.