FOUR DOWNS: Defense keeps it rolling in victory over Dolphins

FIRST DOWN: DEFENSE KEEPS ROLLING

Over the last month, the Detroit Lions have played a much better brand of defensive football. That continued Sunday in Miami with a 19-9 win over the Dolphins.

Detroit's held their last four opponents to 21, 17, 15 and nine points, playing a huge factor in their current four-game win streak. It's the first time since 2016 the Lions have held four straight opponents to 21 points or less.

"We've cleaned a lot up," Lions head coach Dan Campbell said of the defensive performance over the last month. "Guys are trusting what they're being taught, they're executing it and with that execution comes confidence."

Detroit's defense held Miami out of the end zone and…