7 takeaways from HC Dan Campbell's media session

4. Lions first-round pick Terrion Arnold will make his NFL debut Sunday night. Campbell said Arnold is ready to go and is not lacking any confidence. Arnold will also not be limited to just one side of the field, either the boundary side or field side, per Campbell. That will give defensive coordinator Aaron Glenn some options between Arnold and veteran outside cornerback Carlton Davis III.

5. Second-year running back Jahmyr Gibbs talked to the media Tuesday and said he’s ready to go after missing a couple weeks with a hamstring injury.

Campbell made an interesting point about Gibbs’ injury, saying they are encouraging him to motor up to top speed at least once every practice to help avoid injury.

“Here’s the trick with Gibbs,” Campbell said. “And we tell him this. Everyone top to bottom tells him this. When you can run like he runs, I mean this guy can run, if you don’t touch that speed in practice at least once or twice a day you set yourself up for something to happen on Sunday.

“You’re a guy that runs 22 miles per hour you better touch it because the first time you touch it in a game when somebody is coming after you and you’re running away, that’s when bad things happen.”

Campbell said the trick has just been educating Gibbs on that philosophy and making him do that in practice so he doesn’t have a setback. They’ve been doing it ever since he got back.