If someone is not currently signed, a team might just sign him for their summer league team, which will give him a chance to prove his worth and possibly be signed to a contract during the regular season.
Если игрок не был подписан, команда могла подписать его на период проведения Летней лиги, что давало возможность показать свой максимум, а затем претендовать на полноценный контракт.