Photos: RoboCup 2006 set to kick off

With the World Cup games just under way in Germany, it's not just humans who'll be kicking soccer balls in a quest for glory. So, too, will teams of mechanical Ronaldinho wannabes, at the RoboCup 2006 event in the northern German city of Bremen this week. In this photo from an earlier match, these fully autonomous players are running through a four-on-four game.