Athletes may also use a "grayshirt" year in which they attend school, but cannot enroll as a full-time student, and do not receive a scholarship for that year. This means that they are an unofficial member of the team and do not participate in practices, games, or receive financial assistance from their athletic department. Typically, grayshirts are players who are injured right before college and require an entire year to recuperate. Rather than waste the redshirt, the player can attend school as a part-time regular student and join the team later. This is also used by players with religious or military obligations that keep them out of school for a full academic year.