Both were obviously intentional in my opinion and neither were within the boundaries of acceptable rucking. You're legs shouldn't be pistoning up and down and the foot should be moving from forward to back, as if to roll the player towards you. »
I don't know, it almost looks like he's trying to bring it forward slightly with his left boot so he can put it back in front of him with his right. But, maybe he did hear a call from his support and figured he'd pop it up in the air on chance.
A yellow would be a bit harsh unless there had been previous related infringements and they'd been warned about it. I could see that though if it was preventing a sure score or something and seen as cynical. Not sure of the context in this game though, and whether or not it warranted that on the basis of being within the 10 meters. »