Volleyball Blocking Foul

Blocking Fouls
Blocking fouls include over-the-net blocking fouls, back-row blocking fouls, blocking fouls, and blocking fouls from outside the marker into the opponent's space. Before or during the opponent's offensive hit, a blocking foul is a touch of the ball in the opponent's space. The basis for judging over-the-net blocking is the time when the offensive player and the blocking player touch the ball. A back-row blocking foul is a back-row blocking foul when a back-row player or a back-row free defender completes the block or participates in the group that completes the block. A block foul is a back-row blocking foul when the ball is blocked by the opponent. A block foul is a blocking foul when the ball is blocked from outside the marker into the opponent's space.
Back-row offensive hitting foul
If a back-row player hits the ball that is higher than the top of the net in the front court or steps on the offensive line (or its extension), and hits the ball over the vertical surface of the net or touches the opponent's blocking player, it is a back-row offensive hitting foul.
Game Interruptions
Normal game interruptions are timeouts and substitutions. When the game becomes a dead ball, before the referee blows the whistle to serve, the coach or the captain on the field uses the corresponding gesture to request a break. One or two timeouts can be consecutive with one substitution by each side, without the need for the game process in between. The same team cannot make consecutive substitution requests without going through the game process, but two or more players can be replaced in the same substitution request. The time of a timeout is 30 seconds, but in world competitions, the method of technical timeout is adopted, that is, when the score reaches 5 points and 10 points in the game, it is a technical timeout, the time is 1 minute, and in each game, the team has another timeout opportunity, the time is 30 seconds. During the timeout, the players must leave the playing area and go to the barrier-free area near the team seat.
Delaying the game
The behaviors that delay the game are: delaying the time of substitution; delaying the time of the timeout after the referee blows the whistle to resume the game; requesting an illegal substitution, and making an illegal request again in the same game; players on the field delaying the continuation of the game. Delaying the game is a foul for the whole team. The first delay in the same round will result in a delay warning, and the second delay will result in a delay penalty.
Hawkeye Challenge
According to the rules, the basic number of challenges for each team in each round is two. If the first challenge is successful, there is one challenge opportunity left; but if the first challenge fails, the team will no longer have a challenge opportunity in this round. Each team must make a challenge by the captain on the field to the first referee.