The legitimacy of the blocker in the range of the passer's line of sight actually comes down to whether they will block you. Most teams work very hard to make sure that at least one person between the opponent's passer and their server can make themselves better off the opponent's offense, which is acceptable.

This situation becomes a problem when the service team looks at you and actively walks around to block you.

Therefore, as long as the team is in the correct order/rotation, the team can set their front players [and back players] in their best way. But if these players move around to block the passers-by's view, they will make a wrong ad and you should get the ball.

If you have problems with other teams' screenings, but the referee doesn't seem to notice, then when you try to see other teams, the way to try to exaggerate the problem is to move your head from side to side.

Volleyball screening rules – the boundaries between law and illegality was originally published on Spring