The reigning top soccer player in the world, Cristiano Ronaldo, leads his Portugal squad against Germany at the World Cup in Brazil on Monday in an opening-round match between two of the world's top-ranked teams.
The rest of Group G - the United States and Ghana - also face off Monday. The schedule also includes a Group F match between Iran and Nigeria.
Argentina's Lionel Messi, who was player of the year four times in a row before Ronaldo, scored his first World Cup goal since 2006 on Sunday to lead his team to a 2-1 win over Bosnia-Herzegovina.
Also Sunday, France defeated Honduras 3-0 thanks to two goals from Karim Benzema. One of the goals was the first score to be decided using the camera-based goal-line technology.
The most exciting contest Sunday was between Switzerland and Ecuador, who were tied 1-1 as the game went into extra time. Two and a half minutes later, Switzerland's Haris Seferovic took a pass from the left side and directed it past the Ecuador keeper into the top left corner of the net for the winner.
Click here to check out our special World Cup site