Keepers: groove the set position and the dive. Set the feet, attack the ball with the near hand, and save cleanly from a predictable serve.
Serve low to the same side at a steady, predictable pace. The keeper sets the feet and makes a clean diving save each time. Emphasise a balanced set position and attacking the ball on the dive. Build up the pace and vary the side later. Rotate the keeper.
Fork it into your private drills, then change the animation, adjust positions, swap equipment, or drop it into a session block.