OLB Parys Haralson, who was acquired in a trade on Aug. 26, could start Sunday if Junior Galette and/or Martez Wilson can't go.
ILB Jonathan Vilma has been sidelined since Aug. 15 after having his knee scoped and it's not known when he'll return to the lineup.
RG Jahri Evans, a fourth-time All-Pro pick, missed the third preseason game and some practices for an undisclosed reason and his status for Sunday's game is not known.
CB Patrick Robinson, a starter last season, could be on the field in the dime package after recovering from arthroscopic knee surgery in June.
OLB Martez Wilson could be back as well after being sidelined for all four exhibition games with a dislocated left elbow.
OLB Junior Galette should be ready to play Sunday against the Atlanta Falcons after missing all four preseason games with a lower leg injury.
S Kenny Vaccaro, the team's first-round draft pick, will likely be the starting nickel back for the season opener after a strong training camp.