Aussie Rules has nowhere near as much contact as gridiron, and the kind of contact it has is rarely as full-on as in gridiron. There's no real contact in aussie

Aussie Rules has nowhere near as much contact as gridiron, and the kind of contact it has is rarely as full-on as in gridiron. There's no real contact in aussie rules if you're not on the ball, whereas every play in gridiron, more than half the players are slamming into each other, regardless of what's happening. Most of the contact in aussie rules is tackling from behind, whereas in gridiron on every play you have around nine guys smashing into each other just as the quarterback receives the ball... and then all the additional contact depending on the play, including tackling like in aussie rules.