Today's matches were way better than yesterday's ones. Surprisingly, Korea vs. Greece was the best match, IMO. There were more scoring chances, the teams were playing a lot more forward than defensively... Watch out for Korea, because they might be a surprise on group B.
As for Argentina vs. Nigeria... Well, I was expecting a better game from Argentina. Some of their players (Di Maria, Gutierrez, Tevez...) didn't play so well, yet Maradona left them for almost the entire game. Messi did play really well, but Nigeria's goalkeeper was amazing on some plays. And if Argentina doesn't watch out, Korea might upset them. REALLY.
England vs. USA was... well... If Green hadn't messed up in there, England would've won. Jabulani makes it's first victim, but it was far from being the ball's fault... Now, who should start for England, "Calamity" Green or "Calamity" James? :P
Overall, great matches today, and I'm looking forward for Germany's game tomorrow. Lets see if their team has what it takes to go far in this cup.