👉 In rugby, a "harlequins" is a player who is tall enough to stand in front of the line of six players. They are often used as a replacement for a fullback or flanker because their height makes them more effective on the wing and they can be more physically fit than other positions on the field. Harlequins rugby is an international competition, where teams from around the world compete against each other in a friendly format to determine who will represent their country at the