Cagliari forward Mauricio Pinilla is at the centre of controversy in the aftermath of Chile's World Cup defeat to Brazil.
Globoesporte says the director of communications of the Brazilian Federation Rodrigo Paiva punched Pinilla.
Chile director Maria Jose claims it was caught on camera by FIFA crews and demanded an investigation.
Paiva said he was really trying to reach Chile assistant manager Sebastian Beccacece and the punch on Pinilla was an accident.
