Why one player in volleyball wears a different colour?
It’s the libero. they are like a defensive specialist. Their job is to only play the back row. It is a position. Here is information from wikipedia. “The Libero In 1998 the libero player was introduced internationally, the term meaning free in Italian is pronounced LEE-beh-ro (rather than lih-BEAR-oh); the NCAA introduced the libero in 2002.[15] The libero is a player specialized in defensive skills: the libero must wear a contrasting jersey color from his or her teammates and cannot block or attack the ball when it is entirely above net height. When the ball is not in play, the libero can replace any back-row player, without prior notice to the officials. This replacement does not count against the substitution limit each team is allowed per set, although the libero may be replaced only by the player whom they replaced. The libero may function as a setter only under certain restrictions. If she/he makes an overhand set, she/he must be standing behind (and not stepping on) the 3-meter
