US coach Bob Bradley says his troops must work their socks off to kick out Ghana in Saturday's last 16 clash at the Royal Bafokeng Stadium in Rustenburg.
Bradley's side earned a late strike from Landon Donovan the send them to the summit of the Group C and set up a clash with their 2006 destroyers.
The 52-year-old is refusing to write off Ghana who have failed to score a goal in open play.
"This particular Ghana team is well put together. Their coach, Milovan Rajevac, has done a good job. The team is organised, it has some talented individuals and great athletic ability. But when you look at their style of play, you see the individuals fit well into the team framework," Bradley said.
Bradley is confident progress to the last 18 and boost their chances of making a deep run at the tournament.
"When you get through that, it is good to be able to go one game at a time and see how far you can go."
Asked how far he thought that might be, Bradley replied: "If we continue to build on the success we've had so far, we can go to the end.
"That's the name of the game but that has to be balanced with a concentration on each game.
"We try hard not to get ahead of ourselves but at same time everyone has this idea that, if everyone puts everything they have into it and things go our way, we could go far."