Usually, the outside linemen are a tight end and a wide receiver, but the alignment varies by formation.
The fourth player in the offensive backfield often plays as an additional wide receiver or tight end.
Typically, the lurker leads the team in interceptions and spies on the quarterback on deep passes.
Blocking under the belt is strictly forbidden under nine-man French rules, but the field size remains the same as in standard 11-man American football.
The game is played on a full-sized field, with modified timing rules (10-min quarters, running clock except the last 2 min of each half).