For rugby league, I'm not sure. I had a scan of their rules and couldn't find the relevant section:
http://www.nrl.com/portals/nrl/RadEditor/Documents/NRL Rules book 2013FINAL.pdf
For rugby union we have this checklist:
- is the ball on the ground?
- did the player press down on it his body/hand/arm?
One test I would apply for "pressing down" is, "did the ball's movement change because of the player's actions"
, if not, how could he be "pressing" on the ball?
So ignoring whether or not its on the ground, I think it is, I don't think he is pressing down on the ball. I gather this from the front angle, where the ball bounces as if it would have if he had not touched the ball, hence I'm saying I think the side angle creates a bit of an illusion in terms of the "grounding".