---San Francisco 49ers tight end Vernon Davis was activated for Sunday's game against the Arizona Cardinals, according to NFL.com.
Davis sustained a concussion last Sunday against the Seattle Seahawks and was listed as questionable on the team's injury report.
---Chicago Bears middle linebacker Brian Urlacher did not play in Sunday's game against the Detroit Lions. Urlacher, who practiced on a limited basis Friday and was listed on the team's injury report as questionable, has been out since he strained a hamstring on Dec. 2 against the Seattle Seahawks.
---Cincinnati Bengals running back BenJarvus Green-Ellis injured a hamstring during pregame warm-ups on Sunday and was not scheduled to play against the Baltimore Ravens, the Bengals announced.
---Green Bay Packers wide receiver Randall Cobb was inactive for Sunday's game against the Minnesota Vikings because of an ankle injury.