Emiliano Martinez believes Manchester United have a "little treasure" in the form of Alejandro Garnacho after he made his senior debut for Argentina on Thursday.
Garnacho, 18, came on as a second-half substitute for the world champions as they recorded a comfortable win over Australia in Beijing. Lionel Messi struck his fastest-career goal inside two minutes to give Argentina the lead, before German Pezzella notched a second after the break.
Lionel Scaloni promised Garnacho some minutes in either of the two friendlies against Australia or Indonesia this summer, and his word was proven in China as the winger entered the field of play with 16 minutes to play. He replaced the evergreen Nico Gonzalez and put in a real shift on his debut.