The inside centre – who stands closest to the fly-half when the backs line up – and the outside centre tend to be strong, dynamic runners with a good eye for exposing gaps in the opposition defence. In attack they tend to run very direct lines.
The centres take on their opposite number in an attempt to either break the defensive line, or draw in enough opposition defenders to create space and try-scoring opportunities for their team-mates. As such they need to be strong and powerful, and when attack turns into defence, they must also be accomplished at tackling.
The inside centre is often the more creative in a centre pairing and should be able to pass and kick nearly as well as the fly-half. Meanwhile, the outside centre tends to be the faster of the two and the ability to offload the ball quickly to the wingers is also vital.
Passing
https://www.youtube.com/watch?v=SiGE7z1OnJQ
https://www.youtube.com/watch?v=5WWqPSSLcdw
Running lines
https://www.youtube.com/watch?v=zoIdR93Cmh8
Front on tackle https://www.youtube.com/watch?v=RHMP7oEejKI
Side tackle https://www.youtube.com/watch?v=exMTrfMsTno
Kicking to relieve pressure https://www.youtube.com/watch?v=16LwVZbzMX0
Players to youtube
12 – Ma’s Nonu, Damian de Allende
13 – Conrad Smith, Semi Radradra