In the picture above, player #1 is designated as the Libero on the line-up sheet.  The regular players are wearing the jersey worn by #7.

The referees determine that player #1 may not play as Libero because neither the Libero nor his teammates is wearing a solid color jersey.

When the coach argues that the Libero jersey is solid black, the referees state that because the player is wearing long sleeves that are the same color as the regular players’ jerseys, the Libero is not immediately recognized from all angles as being in clear contrast to and distinct from the other members of the team.

Do you agree with the decision of the referees?  How would you handle this situation?