At a youth soccer game, the coach of one team questioned the ref if the game ball was the correct size and weight since he seemed to think it was not. The ball was like playing with a rubber kick ball with a lot of bounce. The ref answered the coach that both sides have the same advantage and disadvantage with this ball and he was not going to change it, even though there were plenty of balls on the sidelines to choose from.
Should a ball be marked somehow showing that it is the proper size and weight for a game? And if so, then it would have been easier for the ref to point this marking out as proof that the ball is correct.
USSF answer (April 16, 2008):
Although the referee has the final decision, the players deserve to play with the best ball available. There are standards for all balls, specifying circumference, weight, and air pressure. A proper soccer ball should be marked with its size (based on the circumference). The referee should guarantee that the weight and air pressure are sufficient for a good contest.