@ Splash:

Being called a terrorist has nothing to do with your religion these days. People get insulted for the nationalities. These days, if some one calls you a terrorist and you are from a middle east, you do not take that because its a stereotype. As you have stated :

Quote Originally Posted by splash
Also, insulting a person's mother is a really common way for people to get at each other and i dont think it justifies a head butt because being an inhabitant of this world, he should have gotten used to it.
This is common I would say in the "western part of the world" but not in the middle eastern part. In the middle east, if some insult your mom or your dad, its bad, real bad. It is insutling your mom/dad and yourself. It shows that you have no respect for the elders. You do not do that no matter what. There is no like fuck you, screw you insults. Its all like your dad is dog, your mom is a slut. That is the culture over there.

And now for the mom being called a prostitute.
This is the article where I have found the information.

http://img75.imageshack.us/img75/1540/zizou12ob.jpg

But if you want only the paragraph. Its the 7th one.

http://img136.imageshack.us/img136/4730/zizou21ny.jpg

Has I have mentionned before:

Quote Originally Posted by gr3atfull
It seems that the italian player called him a terrorist and his mom a prostitute. Serve that italian player right to get a head-butt for being racist.
So I can not say for 100% sure that the Italian player said that, there is some possibilities. I guess we have to wait until we get to know for sure what happen between those two players.