A delightful goal by Isco proved the difference as Real Madrid survived a Manchester United fightback to win 2-1 and lift the UEFA Super Cup in the Macedonian capital Skopje.Casemiro put the reigning European champions in front at 24 minutes on a steamy summer's night in the Balkans and Isco doubled their lead seven minutes into the second half after a one-two with Gareth Bale. It is the eighth time in nine years that a Spanish club has won the Super Cup.