Why does one player from each team in volleyball where the same color shirt as their opposing team?

Question

I was watching the Olympic Games today and they were playing volleyball. I didn't understand why all the girls in red (China)had one girl in a blue shirt and all the girls in blue (Venezuela)had one girl in a red shirt? I don't get it.

Answer 1

Me is correct.  Please read all of the details closely.

The fact that they are wearing the same colored shirt as the opposing team is a coincidence.  They have to wear a shirt that is clearly contrasting to their own team.  

Answer 2

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 line; otherwise, the ball cannot be attacked above the net in front of the 3-meter line. An underhand pass is allowed from any part of the court.

The libero is, generally, the most skilled defensive player on the team. There is also a libero tracking sheet, where the referees or officiating team must keep track of who the libero subs in and out for. There may only be one libero per set (game), although there may be a different libero in the beginning of any new set (game).

Furthermore, a libero is not allowed to serve, according to international rules, with the exception of the NCAA women's volleyball games, where a 2004 rule change allows the libero to serve, but only in a specific rotation. That is, the libero can only serve for one person, not for all of the people for whom she goes in. That rule change was also applied to high school play soon after."

Answer 3

The girl with the differently colored shirt is the libero, or the defense specialist.

Answer 4

its called a libero!!!they can only play back row they cant serve and they cant block or attempt to block!they have to wear a different color shirt than everyone sense you only have a limited amount of subs the libero is not counted as a sub and there feet cant come off the ground!!!!!so that's wat it is!!!  

Answer 5

that means they play a different postion. i dnt know how to spell it but they only do back line....they dont have to stand at the line like everyone else to be switched out. they can just go out when it is time and come back in the same way. its calls the libero. they cant block or attack the ball when it is above net height. they can go as a setter only.

here the website where you can find out more about it

http://en.wikipedia.org/wiki/Volleyball