United States began its FIFA U-17 World Cup campaign in convincing fashion, beating group challenger Czech Republic 3-0 at Estadio Torreon.
The US gained the initiative early, as Alejandro Guido took advantage of an error from Patrik Svoboda to hammer home a powerful shot just five minutes into the match.
Czech Republic began searching for the equaliser and only US goalkeeper Kendall McIntosh prevented the sides from going into half-time with the scores level.
The US came out with renewed vigour in the second stanza, with skipper Marc Pelosi narrowly missing from outside the area before Esteban Rodriguez extended the lead.
The Czechs then intensified their offensive efforts, with Michal Travnik coming close with a long-range shot in the 79th minute.
It was the Americans, however, who again found the net as substitute Alfred Koroma sealed the win with a low-drive that eluded goalkeeper Lukas Zima.
The US, now level on points with New Zealand, will meet Uzbekistan in its second group match in Monterrey on Wednesday.
Czech Republic will play New Zealand next.