Josh Sargent became the fourth-youngest American to score, making an audacious interception of a goalkeeper's pass over his head to put the ball into the net in his international debut at just 18 years, 102 days.
Tim Weah, two days younger than Sargent, got his first goal seven minutes later.
With no World Cup to play for, the United States gave youth a chance and they came through in a 3-0 exhibition win over an equally inexperienced Bolivia team on Monday night.
"It's great feeling both of us getting to do this together," Sargent said.
Walker Zimmerman, a relative geezer at 25 but making just his third international appearance, put the Americans...