If a player intercepts the ball in the endzone, the player may return it out of the end zone. If the player is deflagged while running around, it is a touchback. A fumble is dead at the point the ball touches the ground, if fumbled backwards, or at the spot where the fumble occurred if fumbled forward. The ball goes to the team who last had possession with the resulting loss of down. A ball that has not hit the ground can be recovered and advanced by either team.
All legal players are eligible to receive a pass.
The center cannot carry the ball from scrimmage but can receive a pass. If thrown after team possession is changed during the down. If intentionally thrown to the ground or out of bounds to avoid a loss of yardage. One knee is equivalent. B. when a player is in possession or during a backward pass, the team in possession may choose either to accept the play where it is blown dead or to replay the down.