[Adam]

Originally Posted by griblets

Almost had this happen yesterday at our MS boys' final. Blue jerseys and black undershirts. Fortunately, when we informed the coach, we quickly recognized the players were about to change on the court and we sent them to the locker room to change before any harm was done.

The MS officials apparently let this go all season, and now that they have experienced officials for their playoffs, the teams are just learning about the new rules.

This is not a new rule.