In gridiron football, intentional grounding is an incomplete pass thrown by a quarterback toward an area of the field where there is clearly no eligible receiver. The penalty usually results in the loss of a down as well as 10 yards. If the quarterback threw the pass from his team's own end zone, the penalty results in a safety being scored by the defense. In order for intentional grounding to be called, several factors must be confirmed. It is common for the penalty to be reviewed after the play, as there are numerous things to consider. Possible examples: