It's the responsibility of all users to return the stadium training key each night!! As it is common to have up to 6 different teams training on any night it is often confusing as to whose job it is to return the key, but logic says it is only fair to share that responsibility! If you've been coaching/training and the key is hanging on the hook as you leave please grab it and return it to 42 Kloeden St.
If the training key is not returned it means training will have to be cancelled on the following night. Unfortunately that has already happened a couple times this season.