Lionel Messi sensationally announced his retirement from international football on Sunday after Argentina crashed to an upset defeat against Chile in the final of the Copa America. Messi's dramatic announcement followed Argentina's third loss in a major final since 2014. Despite a glittering career that has seen him be named FIFA World Player of the Year on no fewer than five occasions, Messi has always failed to land a major title in the colours of Argentina. Messi's bombshell decision comes as a bolt from the blue to his millions of fans.