Monangai (thumb/toe) was listed as a non-participant in Tuesday's walk-through.
The Bengals have signed Kattus to their practice squad.
Jackson is dealing with a hip flexor, Jeremy Fowler of ESPN.com reports.
Santos made one of his two field-goal attempts and all four PATs in the Bears' 31-23 win over the Falcons on Sunday.
Elliott (quadriceps) was estimated as a full participant on the Bears' official injury report Monday.
Stevenson (hip) was estimated as a full participant on the Bears' official injury report Monday.
Edwards (hamstring) was estimated as a non-participant on the Bears' official injury report Monday.
Monangai (thumb/toe) was listed as a non-participant on Monday's estimated injury report.
Hudson (pectoral) was placed on injured reserve by the Bengals on Monday.
Gordon posted four solo tackles, including 3.0 sacks, and two forced fumbles during the Bears' 31-23 win over the Falcons on Sunday.
