Robots vs Humans: 2050 World Cup

Euro 2012 has been kicked off! Star players in Europe appear in this cup and show their amazing skills. Every night, I watch the games on TV to see how awesome humans can be! (FIFA World Cup qualifier games of Japan, also)

Then, I remember the ultimate goal of the RoboCup, the "World Cup" of robots:

By mid-21st century, a team of fully autonomous humanoid robot soccer players shall win the soccer game, comply with the official rule of the FIFA, against the winner of the most recent World Cup.

It is fun to predict the winner of the 2050 World Cup; someone says it's US, I hope it's Japan. But, will robots beat the winner?  Following are difficulties:

1. Dribbling the ball fast enough without falling down
2. Understanding tactics (in real time)
3. Intercepting the ball without foul
4. Recognizing what the referee says
5. Gaining supporters

The last problem seems to be the most difficult.