Chile coach Claudio Borghi will allow Alexis Sanchez to leave La Roja's training camp ahead of the Copa America in order to sign for Barcelona.
Udinese striker Sanchez has reportedly agreed a €30 million transfer to the Nou Camp but needs to travel to Spain in order to finalise the deal.
Borghi says Chile have no option but to allow the 22-year-old to fly to Barcelona as they could otherwise be liable to cover the cost of the transfer if Sanchez suffers a serious injury while on international duty.
"It's a very complicated matter," Borghi said. "If we don't allow him to travel, and the sale goes through, we would be accountable for 45 million dollars in the event of anything happening to him.
"It's very simple. As soon as the confirmation of his transfer comes through, he will have the authorisation (to travel)."
Sanchez, who joined Udinese for £1.7 million in 2006, enjoyed a watershed season in 2010-11 to become one of the hottest properties in Europe as he netted 12 goals to help his Serie A club qualify for the Champions League.
Barcelona appear to have fought off interest from Manchester United, Inter Milan and Juventus to sign the 22-year-old but will have to move quickly to complete the deal before July 1, when the Copa America begins. Borghi says Sanchez will not be able to travel during the tournament.
"If it happens in the middle of the Copa America, obviously not, but we have time and we know we cannot be responsible for that amount of money, so the ideal situation would be for him to travel and sign when the deal is confirmed," he said.
Borghi believes Sanchez is good enough to play for any side and reckons the youngster is remaining calm during the negotiations between Udinese and Barca.
"We have spoken about this possibility he has," Borghi said. "It's not easy. He's 22 and his transfer costs a lot of money, but he is ready to play anywhere.
"He is training to be the best. He has a little bit of anxiety but that will surely come to an end when he signs the contract."