FIFA World Rank: 62
Coach: Ange Postecoglou
Player to know: Mile Jedinak, midfielder. Australia's new captain isn't afraid to go straight through the middle and ruffle feathers.
FIFA World Rank: 14
Nickname: La Roja (The Red One)
Coach: Jorge Sampaoli
Player to know: Arturo Vidal, midfielder. Mr. Do-It-All. Endless motor. Think LeBron James in a red soccer jersey.
FIFA World Rank: 15
Nickname: Clockwork Orange
Coach: Louis van Gaal
Player to know: Robin van Persie, forward. Consider him one of the best finishers in the entire competition.
FIFA World Rank: 1
Nickname: La Furia Roja (The Red Fury)
Coach: Vicente del Bosque
Player to know: Sergio Ramos, defender. He scored 5 goals in 6 games. And he's defender.