The AP is reporting (excerpted)
FIFA will open a disciplinary investigation into Zinedine Zidane’s conduct in the World Cup final, when he was sent off for head-butting Italy’s Marco Materazzi. Zidane and Materazzi exchanged words after Italy broke up a French attack in extra-time of Sunday’s final in Berlin. Seconds later, Zidane lowered his head and rammed Materazzi in the chest, knocking him to the ground.
Materazzi admitted he insulted Zidane before the France captain head-butted him, but denied calling him a “terrorist.” I am glad, again referring to my previous post below