What is Rugby?

This article from Wikipedia discusses Rugby Union, of which the CSULB Rugby team plays.

Team positions: Centres

Centres need to have a strong all-round game: they need to be able to break through opposition lines and pass the ball accurately. When attack turns into defence they need to be strong in the tackle. Usually the two centres are divided into outside centre and inside centre, though sometimes teams play with left and right centres.

The outside is typically the lighter, more agile of the two centres. They are the "rapiers" that are given the ball, normally via the fly half, to make breaks through the opposition backs before offloading to the wingers after drawing the last line of defence.

The inside centre tends to be the larger of the two centres. In defence or attack, the inside centre is always in the thick of the action, drawing the opposition's defence, making the breaks to make the space for the outside centre and dishing out the tackles in defence along with the forwards. Some of the skills of the fly-half, such as distribution and kicking, can be advantageous to inside centres, as they may be expected to act as fly-halves if the normal fly-half is involved in a ruck or maul.

Notable outside centres include Brian O'Driscoll (Ireland and Lions), Danie Gerber (South Africa), Frank Bunce (New Zealand), Jeremy Guscott (England and Lions), Stirling Mortlock (Australia), and Tana Umaga (New Zealand)

Notable inside centres include Mike Gibson (Ireland and Lions), Scott Gibbs (Wales and Lions), Tana Umaga (New Zealand), Tim Horan (Australia), Philippe Sella, Yannick Jauzion, and Didier Codorniou (France), Jean de Villiers (South Africa), Matt Giteau (Australia), Gavin Henson (Wales), and Will Greenwood (England and Lions)