A Cameroon journalist has alleged Barcelona striker Samuel Eto'o assaulted and injured him during a fracas at a news conference on Friday.

Radio Siantou reporter Philippe Bonney told Reuters the Cameroon international had headbutted him in the face and said he would file a lawsuit against the striker.

The fracas took place when Cameroonian journalists decided to walk out of a news conference ahead of Saturday's World Cup qualifier against Cape Verde to protest at the team's refusal to grant interviews to local reporters.

"I cannot let this go unpunished," Bonney, who said he had suffered a facial injury, told Reuters.