Volleyball drill: chase the ball (long/short)

Suitable for the following techniques: passing , warming-up , condition

Short/long.
Trainer throws ball to position A1.
Player 1 passes the short ball and runs to the middle.
Trainer throws ball to position B1.
Player 2 tries to pass ball back from A2, and gets ready for ball on A1.
Then trainer switches to the other side.
Trainer throws ball to A2.
Player 2 passes the short ball and runs to the middle.
Coach throws ball on to B2.
Player 1 tries to pass ball on B2, and stands ready for ball on A2.
Other players?
Three get balls.
3 encourage.
After 10 balls, change groups.
2 trainers available?
1 trainer makes sure the player in the middle does not cheat by starting too fast. (and keep him/her in the middle).

https://youtu.be/hzkAkxcd69s?t=123

Minimum number of players

Maximum number of players

Pylons

U12

U13

U14

U15

U16