The player starts in the 'press-up' position with one hand balanced on a ball.
The player then lifts the ball and throws it in the air so it bounces.
He/she then has to catch it with the opposite hand by changing the supporting arm.
To make sure that a player's core muscles are being used at the maximum level they should not bend their hips and keep a tense body shape.
As players get stronger ask them to do the drill supported by their forearm.
Note: this is difficult to do when a player's arms are sweaty because of the chances of slipping.
As the Lions tour approaches with their first tour game this Friday against Argentina, we look ahead at what the fans can expect to see from both sides as the tour in Australia approaches...
Introducing the Sportplan FootballBot. Your new coaching partner that has all the answers to the questions you may have...
Introducing the Sportplan RugbyBot. Your new coaching new coaching partner that has all the answers to the questions you may have...