Champions League final at Wembley or not: for real Madrid The semi-final against FC Bayern was one of the most important games the biggest club has played so far, at least in its own stadium. A semi-final second leg is, in any case, the most important home game you can have in the Champions League. It was also the first for Real in the completely rebuilt Bernabéu Stadium, which cost more than 500 million euros and now shines.