US national team boss Klinsmann issued the message after the 41-year-old Tottenham Hotspur keeper offered to come out of international retirement last week if his country needed him in the wake of Tim Howard's recent back injury.
Howard is expected to miss World Cup qualifiers in Denver against Costa Rica on March 22 and then in Mexico on March 26.
"We haven't looked into [Friedel's return]," Klinsmann told media members after Wednesday's Gold Cup press conference in Chicago. "It's a nice comment by Brad. Obviously he's a great guy, but we have total faith in Brad Guzan now as No. 1 for Costa Rica and the Mexico game, and also with Nick Rimando being his backup.
"Then we have two youngsters through the ranks, one here in Chicago, Sean Johnson, and Billy Hamid in Washington."
Klinsmann, who took over the US national team job in 2011, added: "We have one thousand percent faith in Brad Guzan, that's why Brad was our backup all the time.
"He's No. 1 at Aston Villa, he's playing high level football week-in, week-out. We're not worried about that situation at all. We're confident we can give Costa Rica a really good game next week."
Aston Villa last week