1-2-3 Game by Pep Lijnders (Patreon)

'The 1-2-3 game is a routine where you train your brain in relation to keeping the ball in the air. Two players go together and play the ball to each other; they tell their partner how many touches they are allowed in keeping the ball in the air and with this, they have to adapt their bodies quickly to control and return the ball.' Pep Lijnders

Reference: Pep Lijnders: Intensity: Inside Liverpool FC: https://amzn.to/3i3VSBc