The other huge difference is that tackles in rugby are mostly from behind with both players moving That's simply not true. When you're taught to tackle, it's a

The other huge difference is that tackles in rugby are mostly from behind with both players moving That's simply not true. When you're taught to tackle, it's always from the point of view of someone running in to you. In fact, I remember "classic"-style tackling from behind being actively discouraged, as no-one wants a mouth full of fast-kicking studs.