Pedro received the match's first yellow card after a bit of a reckless challenge, leaving a high boot in on Sergio Ramos as the two players tried to control a high ball. Pedro's eyes were locked in on the ball, but it was not a good play by the Barcelona forward and the referee agreed with the protestations from Jose Mourinho on the sidelines.
The Barca goal definitely slowed the match tempo down, but it also upped the physicality as the challenges started to increase in both frequency and "meatiness"
The story of the first half was definitely missed opportunities due to less than perfect passing in the attacking third and off-target finished. Both teams fell victim to their own errors and considering the two misses from Karim Benzima, Madrid might be a little bummed to now be in the lead after 45 minutes. That however is the game and if you're not clincial and don't take advantage of your chances, you often find yourself on the end of a unfavorable result.