EAST RUTHERFORD, New Jersey - Lionel Messi has said he is to retire from international soccer after Argentina were beaten 4-2 by Chile on penalties in the final of the Copa America on Sunday, the fourth time he has lost a final with the national side. 'It's tough, it's not the time for analysis,' he was quoted as saying on the Argentine national team's Twitter feed. 'In the dressing room I thought that the national team was over, it's not for me.'