By Liam Twomey in Rio de Janeiro
Mauricio Pinilla has called on Fifa to punish Rodrigo Paiva more harshly than Luis Suarez after claiming the the spokesman for the Brazil Football Confederation punched him at half-time of Chile's World Cup clash with the host nation on Saturday.
Fifa confirmed on Monday that it has opened disciplinary proceedings against Paiva, who has been automatically suspended from attending Brazil's World Cup quarter-final with Colombia on Friday after being dismissed immediately following the altercation with Pinilla at the interval.
Pinilla, a substitute at the time of the incident, came off the bench and struck the crossbar late in extra-time for Chile before missing a penalty kick in a tense shoot-out which saw Brazil emerge as narrow victors.
After the match Paiva admitted he had clashed with Pinilla but told the Brazilian media: "It was not just me. Pinilla came towards me and I just defended myself. I reacted by pushing him."
But Pinilla insists he was punched and wants Fifa to hand out a harsher punishment than that given to Suarez, who received a four-month global ban for biting Giorgio Chiellini during Uruguay's 1-0 win over Italy.
"Mr Rodrigo Paiva, Brazil press officer punched me in the tunnel without any reason," he tweeted from his official account. "Fifa can't tolerate this delinquent.
"Fifa must intervene; this is something so serious. There can't be any fool punching a player, even less a press officer."
Reacting to Paiva's automatic one-game suspension, he added: "Just one-game ban to Paiva? They should be embarrassed because of this delinquent in a suit.
"Suarez risked his career due to his biting and just one-game ban for a press officer punching? Fifa?
"I call on Fifa for an exemplary ban for Paiva, just like the one for my colleague Suarez. This is even more serious. There are pictures."