But the stark reality is this: All that work will amount to nothing unless the United States gets at least a tie against Slovenia today.
"Obviously a loss would put us out. That's something that's going to be in the back of our minds," American captain Carlos Bocanegra said Thursday following a chilly workout at Ellis Park.
Following an opening 1-1 draw against favored England last weekend, the Americans need at least one point on a day when the English face Algeria in the late game at Cape Town.
With a victory against the smallest of the 32 nations in the tournament, the U.S. would take a huge step toward reaching the knockout stage of the tournament for the first time since 2002.
Four years ago, the U.S. rebounded from an opening 3-0 loss to the Czech Republic and played to a rugged 1-1 tie with eventual champion Italy -- only to then get eliminated with a sloppy 2-1 defeat to Ghana.
"What makes teams great is the teams that do it three, four, five, six, seven times in row," Landon Donovan said. "We haven't proven we can do that yet. And that's what we need to prove this time."
An underdog against the English, the U.S. heads to this game a rare World Cup favorite in a matchup of nations at opposite ends of the size scale. At almost 310 million, the United States has the largest population among the 32 World Cup countries. At 2 million, Slovenia has the smallest.
"It's a great match and it can solidify Slovenia on the global map of football," said Slovenia coach Matjaz Kek, whose team would reach the second round for the first time with a win.
Slovenia, which wears distinctive striped jerseys that resemble Charlie Brown's shirts, pretty much views the United States the way the Americans look at soccer powers.
At the World Cup for just the second time, the Slovenes are ranked 25th, 11 spots behind the U.S. Slovenia is seeking to follow its opening 1-0 win over Algeria with a victory that would be received here with cries of "Ayoba," a South African expression used for surprising events.
Midfielder Andrej Komac doesn't think a Slovene win would be so surprising. He boldly predicted victory, prompting U.S. goalkeeper Tim Howard to respond: "Talk is cheap."
Howard expects to play, with a painkiller injection if necessary, after taking a boot from Emile Heskey in the ribs last Saturday.