3/4 center - rôle and morphology
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 inside centre has recently seen a development in its role. Now, they share many qualities of the fly-half, for example, kicking and distribution. They must also be a very good tackler, and usually lead a rush defence if it is called. For example, the current Australian team often interchanges fly-half and inside centre regularly during the course of the match. In New Zealand inside centre is referred to as "Second five-eighth".
A good centre will be one of the most versatile players in the game: it is easy to switch from there to the wing, fullback, or fly-half. They vary in physique, which usually affects their game plan. A big centre will be used for crash balls or switches, whereas a smaller centre may change his game to become a more fly-half related centre. The outside centre also sees two roles. They are the "rapiers" that are given the ball, normally via the fly-half or inside centre, to make breaks through the opposition backs before offloading to the wingers after drawing the last line of defence. The first type of outside centre is the attacking one. This type makes them faster and very agile, almost like a winger. The second is the defensive, who draw attention away from the wingers to try and give them space. A good mix of the two is what most teams look for.
*some 3/4 centre: Ekwekum Evans (marcassins rugby player)
*average 3/4 Professional centres france Championship morphology is 1.84 m - 92 kg