its not as simple as that. kaka diddnt have to elbow the guy. worse case is that the IVC player would have clattered him and kaka could then return the favour and role on the floor and get the other guy sent off. Its not as if kaka would have been injured from a little clash with the IVC player.
protecting himself? yea right. kaka got what he deserved. a yellow card. i suppose of someone pushed him he should then retaliate by punching the guy in face for "protection".
lol come on the word "being the bigger man" springs to mind. Its fine to protect yourself if someone tried to do a two footed tackle on you or if someone tries to punch u but a little shoulder barge? lmao sorry but you dont need to protect yourself for such a minor colision.
Only immature kids retaliate in such a minor thing especially with millions of people watching you.