A safety in football is when a player is tackled in their own end zone. This results in two points for the team whose defense made the tackle, and they get the ball.
For example, if the Chiefs have the ball at their own three, and the running back is tackled in the end zone on the play by the Dolphins, then the Dolphins would get two points and they would get the ball.
A safety can also occur if the team that has control of the ball, for whatever reason, loses the ball out of the back of their own end zone.
Cardinals safety Adrian Wilson wears the number.
usually a safety is a smaller quicker guy that can hit hard. He is smaller than both linebackers and the defensive line. For ex: if the average d line player is 270, linebacker is 210, and the corners and safety would be about 190
Brian Jordan #40 played safety for Atlanta Falcons and outfeild for St Louis Cardinals, he gave up football to concentrate on baseball.
Middle Linebackers are usually positioned behind defensive tackles and/or in-between the defensive linemen and the defensive backs (Cornerback, Strong Safety, Weak Safety.}Middle Linebacker
A safety occurs when a team which had possesion of the football outside its endzone during a play is tacked in its own endzone. If a punt or kickoff is touched outside the endzone, rolls into the endzone and then downed by the receiving team in the endzone there is no safety, because the ball was not posessed outside the endzone. The rule is often misunderstood - in an NFL regular season game in the '90s, the Giants were awarded a safety when the ball was touched outside the endzone by the receiving team and then downed by the receiving team after the ball rolled into the endzone. The next day the NFL announced that there was no safety. The college rule is the same - possession outside the endzone, and not a mere touching is, is necessary in order for there to be a safety