US head coach Mauricio Pochettino handed debuts to 13 players in a major reset across four friendlies. (USMNT pic)

LOS ANGELES: US teen Justin Ellis scored the only goal as Mauricio Pochettino's young team ground out victory against Canada to cap a flawless international window with four wins from four friendlies.

The 1-0 win lacked the dynamism, fluidity and multiple goals of wins against Mexico, Chile and Peru, but was another vindication for Pochettino's policy of blooding fresh talent in the post-World Cup window.

Nineteen-year-old Ellis, who had scored on debut against Peru, bundled in an Alex Freeman strike midway through the first half, while Luc de Fougerolles came closest for Canada by hitting the crossbar after the break.