Zak then dropped into a low crouch and came up under Drizzt's defense.

Under Mr. Wicker's selective defense, Mr. Johnson would spend a year in prison for his action.

As a sophomore in 2008, Miller played at weakside linebacker under Joe Kines' 4-3 defense.

In 2010, Miller switched to playing as a 3-4 outside linebacker under Tim DeRuyter's defense.

Suddenly he dropped into a grotesque crouch, and lunged under the other's defense in a desperate try for a quick kill.

It dived, passing under his defense in the obscurity, and fastened its teeth on Tyl's knee.

Jagr seemed to struggle under the Devils' suffocating defense.

Useful for getting under an opponent's defense or when the boxers are close together.

But he complained that under then-Falcons coach Marion Campbell's read-and-react defense, he wasn't freed enough to rush the passer.

In 2010, under his 3-4 defense, they improved to 21st in scoring defense.