The Play's The Thing
By receiving the handoff at close to full speed, the wideout provides the offense with a huge advantage. At the same time, however, the ball carrier risks getting flattened by an unblocked defender in the backfield or while turning the corner.
Seahawks wide receiver Percy Harvin has an unusual combination of muscular build and speed, which makes him ideal to run the jet sweep. But he also has an injury history, so frequency could be key over the long haul.
The success of the jet sweep is based on misdirection into open space. In the season opener against the Packers, the Seahawks had Harvin line up on the left side of the formation in all four of his rushing attempts. In Super Bowl XLVIII against the Broncos, the Seahawks ran the play twice, with Harvin lined up on the right side both times.
"It definitely affects the defense," said Seahawks quarterback Russell Wilson. "Just to see the guys freeze, or they will run one way and the ball will be going the other way. Just to keep them guessing, really. We do so much motion and shifting anyway, they don't really know what's going to happen."
1
Harvin picks up speed as he goes in motion across the formation toward Wilson and running back Marshawn Lynch. At this point, the defense recognizes for the first time that the jet sweep could be the play call.

2
Harvin times his approach to the snap so he can receive the ball from Wilson in stride. Lynch moves toward the handoff as well, creating confusion as to which player will carry the ball.

3
Lynch runs off tackle, whether or not he receives the ball. Harvin continues in the other direction, turning upfield after he clears the formation.

4
Harvin nears full speed as he races up the right side of the field. The play provides one of the few opportunities for a ball carrier to accept a handoff while already running at a high rate of speed.

ESPN Seattle Seahawks reporter Terry Blount contributed to this report.