What do the girls standing at the corners of the court do?
The two players at the corners of the court are official line judges and play a very important role in the game. Each line judge stands to the right of each referee. Their duties are to watch the two court lines where they are standing, the short line which is the back line or serve line, and the long sideline all the way to the end of that line to the opponents side of the court. The line judges duties are to watch for foot faults on a serve (the servers foot must not touch the line) and determine if the ball is in or out on their respective lines. The line judge is to make the appropriate hand signal to the head referee. The head referee will look to the line judge for their determination of call. The head referee, and only the head referee, has the right to override their decision.