2 players stand with front to each other. One has the ball and stands on 1 leg - the leg which is on the outside.
The other players also stands on 1 outside leg.
The ball is thrown diagonally to the other player in a distance of about 1 meter.
The receiving player jumps sideway and land on the other leg catching the ball.
The ball is returned straight forward and the first player jumps sideway and catch the ball.
The ball is returned to the second player diagonally, is received and returned straight forward.
Now we are back to the starting point and the drill continues.