The U21 team is made up of players under the age of 21, although five over-age outfield players and an over-age goalkeeper may be named in a Premier League 2 match squad, these may include fringe first-team players and senior players recovering from injury.
The U21 squad primarily consists of young players who are 21 or younger, although up to five older outfield players and an over-age goalkeeper might participate in a Premier League 2 match, possibly including backup first-team players and senior players recovering from injuries.