Kasey Keller says the USA players were worked extra hard at pre-World Cup training camp because they feel they will have to be fitter than their opponents to succeed.
The USA are matched up with hosts South Korea, Poland and Portugal in Group D of the tournament and begin their campaign fairly late, on Wednesday June 5.
They prepared in North Carolina before heading to the Far East and Kasey hopes that the work put in will stand them in good stead when business commences against Euro 2000 semi-finalists Portugal.
"It was mini pre-season!" laughed Kasey. "Fortunately we only had to do the running at the end of the session, which was kind of a God-send because the outfield players were running before, middle and after. It was a good camp.
"Everybody is feeling pretty good. The hard work that everyone put forward at camp is probably going to pay off.
"We know we're going to have to be fitter, and probably work that much harder than most of the other teams we're playing against if we're going to be successful. So everybody is really getting the right attitude."
So is Kasey any the wiser about who will get the nod between himself and Brad Friedel?
"Not a bit. He's keeping it real close right now - at least with me, I don't know what he's telling other people. I don't really have a clue yet."
LOWDOWN ON THE USA