REAL MADRID completed a hat-trick of European Cup wins in 1958, but they had to work hard for the top prize in a gruelling final with AC Milan in Brussels. In doing so, Real also completed the double of domestic league title and European Cup for the second successive season. Nevertheless, football historians have always wondered if Real would still have been crowned champions of the continent if a brilliant young Manchester United team, managed by Matt Busby, had not perished in the snow of Munich airport in February 1958. However, Real were still widely acknowledged as the team to beat, despite surprisingly changing managers in 1957, bringing in Luis Carniglia to replace the 37 year-old José Villalonga, who was sacked just after winning…