Soccer Curl or Bend

Curl or bend in association football is spin on the ball which will make it change direction, called a 'screw shot' in the 19th century. When kicking the ball, the inside of the foot is often used to curl the ball, but this can also be done by using the outside of the foot. Similar to curl, the ball can also swerve in the air, without the spin on the ball which makes the ball curl.

Curling or bending the ball is especially evident from free kicks, shots from outside the penalty area and crosses. Differences between balls can also affect the amount of swerve and curl: traditional leather footballs were too heavy to curl without great effort, whereas the lighter modern footballs curl with a lower effort threshold. As a general rule, the lighter and smoother the ball the more deviation there is.

Nomenclature

There is a degree of confusion surrounding the correct naming of different aspects of curl. The technique of putting curl on a ball is known as chanfle to some, from Spanish, and also as the Trivela. The deviation from the straight path in the air is the actual curl, or swerve; however, the spin on the ball that causes this is also known as the curl. Shots that curl or swerve are known as curlers, swingers, or ones that bend, also in extreme cases, banana shots. However, it is extremely rare, these days, to hear any shot described as a "banana shot".

Usage

Free Kicks

Free kick takers often curl and put spin on the ball, to curl it over or around the wall of defending players, out of the reach of the goalkeeper. Goalkeepers usually organize walls to cover one side of the goal, and then stand themselves on the other side. Thus, the free kick taker has several choices, including; either to curl the ball around the wall with finesse, to bend the ball around the wall using power, or to go over the wall.

The 1950s Brazilian star Didi invented the folha seca (dry leaf) free kick, notably used by modern day players such as Cristiano Ronaldo and Juninho, where the ball would swerve downward unexpectedly at a point near the goal.

Corners

Curling can be an effective technique when taking corners. The ball gradually moves in the air towards the goal. This is referred to as an in-swinging corner. Occasionally, a corner-taker will bend the ball towards the edge of the penalty area, for an attacker to volley, or take a touch and then shoot.

Passing

Curling can be used in passing. Effective passes from midfield to an attacking player are often the result of a curled pass around the defender, or long cross field passes are sometimes aided by the addition of curl or backspin.

Causes

The reason that spin on a football makes it curl is known as the Magnus effect. This causes a rotating ball to form a whirlpool about itself, with one side's air moving with the ball and the other side's air moving against the ball. This creates a difference in air pressure, and the ball deviates from its path as a result of this.

The Magnus effect is named after German physicist Heinrich Gustav Magnus, who described the effect in 1852. In 1672, Isaac Newton had described it and correctly inferred the cause after observing tennis players in his Cambridge college.

Outline

SPORTS WORLD

Soccer | Football

The goalkeepers are the only players allowed to touch the ball with their hands or arms while it is in play and only in their penalty area. Outfield players mostly use their feet to strike or pass the ball, but may also use their head or torso to do so instead. The team that scores the most goals by the end of the match wins. The Laws of the Game are the codified rules that help define association football. They are the only rules of association football subscribed to by the sport's governing body FIFA.

Gameplay: Two teams of eleven players each compete to get the ball into the other team's goal (between the posts and under the bar), thereby scoring a goal. The team that has scored more goals at the end of the game is the winner; if both teams have scored an equal number of goals then the game is a draw.

Players: Each team consists of a maximum of eleven players (excluding substitutes), one of whom must be the goalkeeper.

Referee: Is the person responsible for enforcing the Laws of the Game during the course of a match.

Assistant referee: The assistant referee's duties generally consist of judging when the ball has left the field of play.

Equipment: The basic equipment or kit players are required to wear includes a shirt, shorts, socks, footwear and adequate shin guards.

Game duration: A standard adult football match consists of two periods of 45 minutes each, known as halves. Each half runs continuously, meaning that the clock is not stopped when the ball is out of play.

Misconduct (Foul): Fouls and misconduct in football/soccer are acts committed by players which are deemed by the referee to be unfair and are subsequently penalized.

Positions: A team is made up of one goalkeeper and ten outfield players who fill various defensive, midfield, and attacking positions depending on the formation deployed.

Player styles: Most players will play in a limited range of positions throughout their career, as each position requires a particular set of skills and physical attributes.

Formations: The formation describes how the players in a team are positioned on the pitch. Different formations can be used depending on whether a team wishes to play more attacking or defensive football.

Tactics and skills: Well-organized and well-prepared teams are often seen beating teams with supposedly more skillful players, even over time.

Advanced skills: There are various individual skills and team tactics needed to play effective football.
Team Positions

SPORTS WORLD

Team Positions

In the sport, each of the 11 players on a team is assigned to a particular position on the field of play. A team is made up of one goalkeeper and ten outfield players who fill various defensive, midfield, and attacking positions depending on the formation deployed. These positions describe both the player's main role and their area of operation on the pitch.

Goalkeeper: Goalkeeper, often shortened to keeper or goalie, is one of the major positions of association football.

Centre-back: The job of the centre-back is to stop opposing players, particularly the strikers, from scoring, and to bring the ball out from their penalty area.

Sweeper: The sweeper is a defensive position in football, so called because their job is to 'sweep up' any attacking moves which pass other defenders.

Full-back: The full-backs take up the holding wide positions and traditionally stayed in defense at all times, until a set-piece.

Wing-back: The wing-back (or attacking full-back) are defenders with heavier emphasis on attack.

Centre midfield: Central midfielders provide a link between defense and attack, fulfilling a number of duties and operating primarily in the middle third of the pitch.

Defensive midfield: A defensive midfielder is a central midfielder who is stationed in front of the defenders to provide more defensive protection, thus "holding back" when the rest of the midfield supports the attack.

Attacking midfield: An attacking midfielder is a midfield player who is positioned in an advanced midfield position, usually between central midfield and the team's forwards, and who has a primarily offensive role.

Wide midfield: Is a midfielder who is stationed to the left or right of central midfield.

Centre forward: A centre forward (main striker) has the key task of scoring goals and for this reason acts as the focal point of the majority of attacking play by a team.

Second striker: They are required to be more "nippy", quick, mobile, and skillful, helping to create goals and scoring opportunities for centre forwards.

Winger: Is an attacking player who is stationed in a wide position near the touchlines.

SPORTS

Soccer | Football

The goalkeepers are the only players allowed to touch the ball with their hands or arms while it is in play and only in their penalty area. Outfield players mostly use their feet to strike or pass the ball, but may also use their head or torso to do so instead. The team that scores the most goals by the end of the match wins.

The Laws of the Game are the codified rules that help define association football. They are the only rules of association football subscribed to by the sport's governing body FIFA.