Players on injured reserve are eligible to return after missing three games.
Davenport strained a pectoral muscle against the Packers, and Alexander injured his elbow. Alexander played 34 of 57 defensive snaps against the Packers, and Davenport saw action on 26.
Neither player practiced this week.
The team promoted fullback Alex Armah from the practice squad to the active roster and added linebacker Wynton McManis to the practice squad.