A 26-year-old man was arrested during a football match in Greece after allegedly punching a police officer in the face. According to the police account, he first walked up to the officer and hurled insults at him. He then struck him in the face with no warning at all. Officers took him into custody while the match was still going on. He now faces charges over the insult and the physical attack on the officer. Greek authorities have been tightening stadium controls for years after repeated fan violence, including mandatory fan cards and identity checks at the gates. Episodes like this one are precisely what those stricter rules were meant to prevent.