In short: practising fast starting and high jumping in duels for the ball.
Organisation: Each team of three (about the same size) a ball and a piece of the hall or the field.
Jump ball or referee throw. The numbers 2 and 3 stand close together at a few metres from number 1. The numbers 2 and 3 must try to get it first. Who wins the duel the most? After two substitutions.
Numbers 2 and 3 stand right next to each other at about 7 metres in front of number 1. Numbers 2 and 3 sprint towards it and try to catch the ball before it falls to the ground. After, for example, 8 changes, the second change is made after another 8 changes.
Number 1 stands between numbers 2 and 3. He rolls the ball a bit away. As soon as the ball has left the hands, numbers 2 and 3 may start. Who will get the ball first? Number 1 may also make feint throws. Physical contact will occur during these exercises. This is officially forbidden, but everyone knows that it happens and that a lot of it is allowed or not noticed by the referees. It is therefore sensible to practise starting and jumping with an opponent around who will touch you lightly or give you a push now and then (whether intentionally or not). Experience has also taught me that some players who actually lose all duels during matches (or even avoid them), can play much 'harder' after doing this exercise one or more times if they have to. And sometimes even like to do so... Enough about this, it seems to me that this is not the place to point out how opponents can be trumped by physical violence.
As above, but now the trio are standing at about 10 metres from a line. Who is first to catch the ball rolled away by number 1 before it rolls over the line, number 2 or number 3? Note: it is not allowed to 'slip' over the line. If for instance number 2 manages to keep the ball in by holding it back for a moment, but does not come to a stop before the line, then there is still a nice possibility for number 3, who fell behind, to grab the ball first!
The numbers 2 and 3 stand close together at a few metres distance from number 1. Who will get the ball first?