Chicago Bears joint practices with the Miami Dolphins offer ‘a total changeup’ ahead of the preseason opener — in which Matt Nagy must consider safety concerns when it comes to Justin Fields’ reps

“It gets to be a point in camp where you’re tired of going against each other, battling with one another, and you get a chance to take a break and go against somebody new,” Dalton said. “For us, we’ve been going against our defense the whole time. All right, now you get a few days to see a different defense, see how they’re playing certain things.”