Manchester United winger Alejandro Garnacho made his Copa America debut for Argentina over the weekend. Teenage sensation Alejandro Garnacho has taken a step forward in his career by representing his country at a major tournament for the first time. Two years ago Alejandro Garnacho made the decision to represent Argentina, having previously represented Spain at youth level. While he was born in Madrid, his mother hails from Argentina. Garnacho played over an hour as Argentina beat Peru 2-0, finishing the group stages with a 100 per cent record. READ MORE: Who is Alejandro Garnacho? Meet Man Ut…