An England football supporter had a piece of his ear bitten off by another England fan at the World Cup in Brazil.
The assault happened during England's match against Uruguay in Sao Paulo on 19 June, British police deployed to the tournament have said.
Local officers started an investigation after the fan made a complaint but the assailant has not been identified.
...Football blogger Billy Grant was at the Arena de Sao Paulo at the time and became aware of the incident when he heard arguing.
"All of a sudden, he [the attacker] just laid into this guy, and everyone starts saying: 'What's going on?'
"I thought he was actually Uruguayan because I thought he was probably caught in the middle of the England fans, somebody probably said something to him and he hit back."
He said he later heard a woman crying and saying: "Oh my GHod, I can't believe he's done that."
Mr Grant said he asked another fan what had happened: "We said 'what's going on mate, that Uruguayan, what was going on?'
"And the guy said: 'He wasn't Uruguayan, he was English, and he racially abused my mate here and he bit his ear off.'"