Um phalanx, there are rules specifically discouraging players from performing "high kicks"; that is, trying to trap a ball that is in the air using your leg. I know Nani did not see Arbeloa coming, but if he didn't know that someone was coming, why would you have to stick your leg in the air to trap it? Why can't you follow the ball? Like rey said, intent does not matter, no matter what referee, intent simply does not matter. Players almost never are intending to foul another player, so throw that out the window. Excessive force or brutality? It was only excessive because Arbeloa came in to trap it with this chest. It's just an unfortunate mistake for Nani, almost like a defender trying to clear the ball and kicking the player instead of the ball.