My Son may be playing centre for the first time today (U13's). I've been watching this and it's fantastic. Really great breakdown on the defensive side of the position. He's been moving around from 2nd row to winger (albeit a big winger). Sounds like a centre in the making!
There's videos are very helpful hope to watch more new defence videos on exercies and drills technique on defence and mindset on how to be confident with bigger players