Spain international Pedro notched a neat hat-trick, while Argentine superstar Lionel Messi scored a brace -- including one from the penalty spot -- in a first half appearance that draw screams of adulation from the near 50,000-capacity crowd at Bangkok's Rajamangala stadium.

Alexis Sanchez scored the visitor's seventh and final goal as a second half substitute as new manager Gerardo Martino watched his charges cruise to a routine win over a plucky but callow Thai side.