"We have a lot of respect for Costa Rica. (We) can expect a really very, very intense game, high-energy game," Klinsmann said. "But I think we have the quality and the mindset to be confident enough to say, 'We're going to go there for three points.'
"This is what we're trying to build," Klinsmann added. "More and more, this belief is getting bigger. It's growing throughout the entire group. We've got a deeper roster now than ever before. Hopefully, we can take that mindset down to San Jose and win there for first time ever in World Cup qualifying."
In addition to Donovan, Klinsmann selected 11 players who were part of the Gold Cup winning squad: DaMarcus Beasley, Kyle Beckerman, Alejandro Bedoya, Matt Besler, Edgar Castillo, Mix Diskerud, Omar Gonzalez, Eddie Johnson, Michael Orozco and Nick Rimando. He passed over Joe Corona and Sacha Kljestan, who were part of the squad for a come-from-behind victory over Bosnia-Herzegovina earlier this month.
"It was not easy to make those decisions," Klinsmann said.
After playing at Costa Rica, the Americans return home to face archrival Mexico on Sept. 10 in Columbus, Ohio. The U.S. is atop the qualifying group from North and Central America and the Caribbean region, leading Costa Rica by two points with Mexico five points back.
The top three teams advance to next year's World Cup in Brazil, with the fourth-place team going to a playoff with New Zealand, the Oceania winner.
"If we're able to get three points in San Jose next Friday, we're almost there. We're almost in Brazil," Klinsmann said. "I don't want players to think, even for one second, about Mexico in Columbus. I want them to tune in to Costa Rica and give everything they have."
Goalkeepers: Brad Guzan (Aston Villa), Tim Howard (Everton), Nick Rimando (Real Salt Lake);
Defenders: DaMarcus Beasley (Puebla), Matt Besler (Sporting Kansas City) John Brooks (Hertha Berlin), Geoff Cameron (Stoke City), Edgar Castillo (Club Tijuana), Brad Evans (Seattle Sounders FC), Omar Gonzalez (LA Galaxy), Michael Orozco (Puebla);
Midfielders: Kyle Beckerman (Real Salt Lake), Alejandro Bedoya (Nantes), Michael Bradley (Roma), Mix Diskerud (Rosenborg), Fabian Johnson (Hoffenheim), Jermaine Jones (Schalke), Graham Zusi (Sporting Kansas City);
Forwards: Jozy Altidore (Sunderland), Clint Dempsey (Seattle Sounders FC), Landon Donovan (LA Galaxy), Aron Johannsson (AZ Alkmaar), Eddie Johnson (Seattle Sounders FC).