This is the base version of the famous "Line drill" exercise.
Divide the players into two lines.
The first player in the first line (player A) runs towards the second line with the ball.
The first player in the second line (player C) runs towards player A.
Player A pass the ball to player C and takes last position in the opposite line.
Meanwhile, player C receives the ball and passes it on to the second player in the first line (player B).
Player C then takes last position in the first line, and so on.

Versions:

• To further increase the difficulty, shorten the distance between the two lines and make
  "quick-stick" passes.

• Make sure the players use the appropriate grip depending on the length of the pass.
  The shorter pass, the higher grip.
• Make sure the players use both left and right sides when passing as well as catching.
• Encourage the players to try the bounce pass occasionally.