Setup. Keeper starts on the penalty spot. A passer and a striker 35 metres out. One team-mate out wide as the outlet.
How it runs. Passer plays a through ball into the space between the keeper and the striker. Keeper decides early: if they can get there first, sprint out and pass first time to the outlet. If not, drop and get set for the 1v1. Striker chases every ball. Six balls, then rotate.
Make it harder. Passer varies the weight so some balls are the striker's. Then add a second outlet on the other side and the coach calls which one as the keeper sets off.
With 4 keepers. Keeper, passer, striker and outlet. Rotate one place after each ball.