If the penalty taker attempts to fake or dummy the opposition goalkeeper after finishing the run-up to the ball, the taker will be given a yellow card and will not be able to retake the kick, according to the new IFAB rule amendments.
The aim of the amendment is to prevent players using their body shape to deceive opponents' goalkeepers by appearing to be about to shoot but instead moving in another direction when they release the ball. This practice had become common among young players who do not know any better. Previously, if a player used this technique they would be shown a red card and replaced, but under the new rules they will now only receive a yellow card.
There has been some debate as to whether or not this new rule applies only to fakes from behind the goal or also includes dummies into empty spaces in front of it. The new wording of the amendment makes no reference to where on the field you are required to shoot so we can assume that it applies to all situations where the penalty taker might want to shoot but doesn't have the ball yet.
However, one should remember that there is still room for interpretation of the referee's decisions and it's possible that certain circumstances may lead him to give a free shot despite what the law says.
THE PUNISHMENT KICK When there is a foul in the box, the referees give the opposition side a penalty kick. A player may be handed a yellow or red card depending on the severity of the offense. For example, if a player commits an indirect free kick by kicking at a ball that has not been kicked at by another player, he will be sent off and denied a penalty shot.
At the penalty kick, only the goalkeeper may come out to stop the ball. He can use his hands but they must be above the waist. A player can also be called upon to serve as a "scorer" by taking a shot at the goal. This player does not get a point for the goal but instead gives his team a chance to score again during their next attack.
In soccer, a penalty shoot-out is used to determine who wins when teams are tied at the end of regulation time of a game. During such a match, each team takes three penalties, with the first two players from each team going at one time. The third player from each team then goes, with the sequence rotating after each round of penalties is taken.
The ball is placed at the center of the penalty area, and the player takes his spotshot from about 10 yards away.
Although the Argentine's penalty attempt is saved, the referee requests a retake. And what about the rules of the game? When the ball is kicked, the defensive goalkeeper must have at least part of one foot in contact with, or parallel to, the goal line. If this condition is not met, the kick is valid.
In fact, the law states that "where there is no goalie, the player who was last to touch the ball may take a penalty shot." In other words, if the defensive team leaves their goalkeeper empty-handed, they should give the opportunity to score a goal to the opposing player who had the ball last. But it rarely happens in practice; instead, coaches usually choose a player based on position (usually the striker) or even randomly.
The only real rule regarding penalties is that you cannot score a goal from directly behind the ball. Otherwise, all other laws of football apply: players can shoot at will from any angle as long as they are within the area prescribed by the ball's position after being struck by the boot or hand of the attacker.
In conclusion, there are no specific rules for penalties but only general principles that need to be taken into account when deciding how to proceed. It is up to the coach/referee to decide what strategy to follow and how to best use his time given that a replacement goalkeeper is needed for the retake.