United States goalkeeper Brad Guzan claimed his team will not "kid themselves" as they target improvement ahead of the CONCACAF Gold Cup quarter-finals.
Panama dominated USA on Monday in both teams' final group game of the Gold Cup, but Guzan's side managed to hold on for a 1-1 draw just three days after they stole a 1-0 victory from CONCACAF minnows Haiti.
The draw saw USA top Group A with seven points, with Haiti securing second position and a berth in the last-eight.
But while midfielder and stand-in captain Michael Bradley insisted "these games have never been easy", Guzan was more critical of the defending champions after their second straight poor performance.
"Obviously, a positive is the fact that we fought back from 1-0 down to get something from the game," Guzan said.
"But in saying that, we're not going to kid ourselves. We need to try and put together a complete 90-minute performance."
USA trailed by a goal at half-time on Monday, with Blas Perez having put Panama in front at Sporting Park, but Bradley's strike nine minutes after the break secured a point for Jurgen Klinsmann's Americans.
"I thought the first half we were, in basic ways, not sharp," Bradley said.
"We didn't find a way to lift the speed and the tempo of the game in any way, so we kind of just allowed them to dictate everything."
The Toronto FC midfielder added: "We're not naive. We understand that there will be the need to raise our game as the tournament goes on and the games become more important but we welcome that challenge."
