cup, and team usa, ready to get after it. Center stage, opening match tonight. ABC's Paula favris is in beautiful Rio with the latest. Reporter: Hello, the beaches are spectacular, team usa is... See More
cup, and team usa, ready to get after it. Center stage, opening match tonight. ABC's Paula favris is in beautiful Rio with the latest. Reporter: Hello, the beaches are spectacular, team usa is strolling along the beaches in natal ahead of the game tonight. This is after team bonding where they shared stories of world cup past. Overnight as Argentina took on Bos knee Ya, protests erupted. This man who identified himself as a cop firing off live rounds. This after days of devastating rain brought floods, evacuations, and even a mudslide to natal. This where team usa is to take on Ghana tonight. It's not about talking, but showing by our actions. We're excited. Reporter: Team usa one of the last teams to make their debut. And Clint Dempsey, killing time with his kids on father's day. And the French coach getting feisty, accusing them of using a drone to spy on the training session. He's asked for an investigation, saying we don't want intrusion into our privacy. And meantime over the weekend, the Swiss don't miss. Scoring and winning with just 20 seconds left. And a world cup first. Brand new goal line technology put to the test, giving France the goal and taking away the controversy. Even the official world cup soccer ball approved. Tweeting, trust me, goal, and, of course, #Ballin. And finally, busy footwork from Argentina's Lionel mess. Slipping past the competition, 2-1. Messi, majestic. Reporter: And this is the brazu brazuca, the official ball of the fifa world cup. Follow it on Twitter, and join the 1.3 million followers this morning. And growing. Paula, thank you so much. And alex and Julie are going to join us. And ESPN is having all of the action at 11:30 A.M. Eastern through team usa's game at 5:30. And medical news.
This transcript has been automatically generated and may not be 100% accurate.