Volleyball is a team sport in which two teams compete on opposite sides of a net, attempting to ground a ball on the opponent's court while preventing the opponent from doing the same. The sport was invented in the United States in 1895 by William G Morgan, who originally developed it as an indoor recreational game and called it mintonette. The name volleyball emerged soon afterwards because players volleyed the ball over a net.
Modern indoor volleyball is normally played by two teams of six players on a rectangular court divided by a net, although beach volleyball is commonly played with two players per team and has different rules and court dimensions. Teams use a sequence of controlled contacts to return the ball, with passing, setting, attacking, blocking, and serving forming the fundamental technical actions. The ball must cross the net within the relevant boundaries, and teams normally have a limited number of contacts before returning it. Volleyball combines explosive movement, jumping, coordination, tactical positioning, communication, and rapid transitions between offence and defence.
A rally begins with a serve, in which a player sends the ball over the net from behind the service line. The receiving team attempts to control the serve and construct an attack. A common sequence is a pass to a setter, followed by a set that positions the ball for an attacker to hit over the net. The opposing team may attempt to block the attack at the net and defend against the resulting ball.
A rally continues until the ball lands within or outside the court, a team commits a fault, or another rule violation occurs. Modern indoor volleyball commonly uses rally scoring, meaning that a point is awarded after every rally regardless of which team served. Teams rotate positions when they gain the right to serve from the opponents, although players may specialise in particular roles once the ball is served. These rules create a continual cycle of service, reception, attack, defence, transition, and scoring.
The six playing positions in indoor volleyball are commonly described through roles such as setter, outside hitter, opposite hitter, middle blocker, and libero, although a team can use different tactical arrangements. The setter is generally responsible for organising the attack and delivering sets to hitters. Outside hitters contribute to attacking and reception, while opposite hitters often attack from the right side and may have significant blocking responsibilities. Middle blockers specialise in attacking near the centre and blocking opposing hitters.
The libero is a specialist defensive player subject to particular substitution and attacking restrictions under the rules. Despite these roles, volleyball players must understand multiple skills because rotations and tactical systems require coordinated movement. Teams can use systems such as 5 1 or 6 2 formations to distribute setting responsibilities and attacking options. The objective is to combine individual specialisation with coordinated team structure.
Passing, setting, attacking, blocking, serving, and digging are the fundamental technical skills of volleyball. A forearm pass, commonly called a bump, is often used to receive serves or hard driven balls. A set is a controlled contact intended to place the ball in an advantageous position for an attacker. A spike or attack hit is a forceful offensive action designed to send the ball into an area that defenders cannot easily reach.
A block occurs at the net when front row players attempt to intercept an opponent's attack before or as it crosses the net. A dig is a defensive contact used to control an attacked ball. Serving can involve several techniques, including underhand, overhand, float, and jump serves. Each skill requires precise timing and coordination because the ball can travel quickly and because players have limited contacts before returning it.
Volleyball is governed by rules concerning court boundaries, rotations, contacts, serving, net play, player positions, substitutions, scoring, and faults. A team generally has a maximum of three contacts to return the ball, with a block touch treated according to the specific rules governing the competition. A player cannot normally catch, carry, or throw the ball because contacts must be clean and instantaneous. Double contacts and lifts can be faults depending on the circumstances and applicable rules.
Players must also respect rotation order and cannot commit positional faults. The ball is allowed to touch the net while crossing under modern rules, provided it crosses legally, although contact with the net by a player can constitute a fault under specified circumstances. The precise rules differ between indoor, beach, youth, recreational, and modified forms, so the formal rulebook determines exact interpretations.
Volleyball tactics revolve around creating and exploiting space while preventing opponents from doing the same. Attackers may use power, placement, tips, roll shots, and changes of direction to exploit gaps in the defence. Setters can vary the location and speed of attacks to make blocking more difficult. Teams may use combinations involving multiple attackers to create uncertainty at the net. Defensively, players position themselves according to expected attack directions, block assignments, and opponent tendencies.
Serve strategy can also be used tactically to target a weaker receiver, disrupt the opponent's passing system, or force the setter away from their preferred location. Communication is essential because players must coordinate coverage, blocking, reception, and transition movements within fractions of a second. High level volleyball is therefore a complex tactical sport rather than simply a sequence of isolated ball contacts.
Beach volleyball is a major variant with rules that differ substantially from indoor volleyball. Beach volleyball is commonly played with two players per side on a sand court, meaning each player must contribute to nearly every phase of the game. There are no specialised substitutes performing separate positional roles in the same way as a large indoor squad. The smaller team size increases the importance of individual all round skills, communication, movement, and endurance.
Wind, sand, sun, and outdoor conditions can also affect ball flight and tactics. Other forms include sitting volleyball, which is a Paralympic sport played with athletes seated on the floor and a modified net and court structure, as well as various recreational and youth adaptations. These variants demonstrate that volleyball is a family of related games sharing the central concept of sending a ball over a net while using different formats to suit competitive and accessibility requirements.
Volleyball has developed from a late nineteenth century American recreational activity into a major international sport governed through organised national and international structures. It spread through schools, military organisations, clubs, and international sporting networks and eventually became part of the Olympic programme, while beach volleyball later became an Olympic discipline as well. The sport's development has involved changes to scoring, rotation, substitutions, equipment, tactics, athlete training, officiating, and competition formats.
Modern volleyball is physically demanding because players repeatedly jump, accelerate, dive, land, and change direction while maintaining technical precision. Training commonly includes technical repetition, jumping and landing mechanics, strength and conditioning, tactical analysis, serve reception, blocking, attacking, and injury prevention. Volleyball is therefore both a highly technical net sport and a complex team system in which individual actions are closely connected to collective organisation, communication, and rapid tactical adaptation.