What must a player’s number be in terms of visibility and placement on the uniform?

A player's number must be visible and correctly placed for identification purposes during a match. The standard requirement states that the number should be located on the back and the lower front of the uniform top. This ensures that the number is easily seen by referees, spectators, and other players, facilitating identification during gameplay.

Having the number on both the back and front allows for visibility from multiple angles, ensuring that officials can accurately track player actions throughout the match. The placement is designed to avoid confusion with other aspects of the uniform and promotes clarity during the game. This standardization helps maintain an organized and fair competition.

Other options do not meet the criteria set for uniform numbers. For instance, simply having a bright color or large size isn't enough if the number is poorly positioned or only partially visible. Similarly, the number's placement solely on the front or only in one position does not suffice to meet officiating standards. Lastly, allowing any size for the number without specific guidelines would lead to inconsistencies and potential misidentification during play.