The Cincinnati Bengals’ most impressive victory this season hasn’t been over any of the teams they’ve vanquished on their way to a 6-0 start. It’s been beating the injury bug.

The Bengals head into a bye week with the same 53-man roster they broke camp with. No other NFL team has managed that this year. Cincinnati is also the first team to remain unscathed (and use only 53 players) through six games since 2012, when the Baltimore Ravens also did it. That squad rode its good fortune to a Super Bowl win.

Since...