5 things to watch: Lions vs. Bears

2. Injuries

A Thursday game means a short week and a quick turnaround with less time for players to recover from injury. That's an issue for both Detroit and Chicago this week, but the Lions in particular are dealing with a number of injuries.

The Lions will be without starting cornerback Carlton Davis III (knee), left tackle Taylor Decker (knee) and wide receiver Kalif Raymond (foot). Davis and Decker are ruled out today, and Raymond was placed on injured reserve on Wednesday, meaning he'll be out for at least the next four games. The Lions signed wide receiver Maurice Alexander from the practice squad. He could handle punt return duties today in Raymond's absence.

Rookie cornerback Terrion Arnold is back after missing last week's game with a groin injury. It will be interesting to see what the Lions do to replace Davis. They could use Kindle Vildor again like they did Sunday in Indianapolis or play veteran Khalil Dorsey there, but Campbell also said moving Amik Robertson outside and playing Emmanuel Moseley in the nickel could be an option too.

Detroit listed running back David Montgomery and wide receiver Amon-Ra St. Brown as questionable to play today, but there is optimism for both players.

3. Red zone

The records between these two aren't the same but the red zone stats for Detroit and Chicago are very similar. It's been a strength for both clubs all season. Detroit is No. 2 in red-zone defense (40.0 percent) with Chicago coming in at No. 4 (41.0). Both are tied for second with four red-zone interceptions.

Offensively, the Lions are No. 4 converting red zone trips to touchdowns (68.9), while the Bears are No. 5 (65.4). Which team can win in the red zone today? The big difference in Detroit's win last week vs. Indianapolis was the Lions going 3-for-4 in the red zone and Indy going 0-for-2.