Angel Di Maria scored the only goal as Argentina warmed up for the defence of their Copa America crown with a 1-0 friendly victory over Ecuador in Chicago on Sunday. Di Maria, named as captain for the game with Lionel Messi on the bench, bagged his 31st international goal in the 40th minute of an entertaining clash at Soldier Field. Patient approach play saw Atletico Madrid midfielder Rodrigo De Paul play an incisive pass to defender Cristian Romero in an advanced position on the edge of the area