Players start on the baseline with a ball on their racket strings.
They run up to the net where they swap over the ball with the player on the opposite side of the net.
They then run back to the baseline.
If more players are involved then the ball can be passed to the next player and so on till everyone in the team has had a go.
Depending on the level of players conditions can be added, such as:
"It is not only useful for staff who are experienced but a valuable tool for those subject staff who have to take teams."
The variety of sessions across sports - sometimes we steal session ideas from one sport and use them with another.
As we enter the business end of the competition, we take a look at the remaining eight teams and the key talking points surrounding each side.