Real Madrid's Portuguese forward Cristiano Ronaldo (L) vies for the ball with Bayern Munich's Chilean midfielder Arturo Vidal during the UEFA Champions League 1st leg quarter-final football match FC Bayern Munich v Real Madrid in Munich, southen Germany on April 12, 2017.
Security was ratcheted up in Munich, one day after three explosions rocked the team bus of German football club Borussia Dortmund minutes after the bus set off to a planned Champions League game against Monaco on Tuesday night (April 11, 2017). / AFP PHOTO / LLUIS GENE        (Photo credit should read LLUIS GENE/AFP/Getty Images)