Why does one person in pro volleyball have a different uniform than everyone else on the team?

Question

I am watching olympic volleybll and i noticd one maan on each team has a different uniform than the other guys

Answer 1

thats the libero....they switch in and out for a middle in the back row

Answer 2

Hey everyone, look down through a few questions about this - it has been answered about 100 time this last two weeks !