Former Reading striker Danny Loader trained with the senior Porto squad this week.
Loader signed for Porto a year ago and was outstanding for the B team last season.
And after a run of excellent performances, Porto coach Sergio Conceicao called him to senior training on Friday for the first time.
An England youth international, Loader has played primarily as a winger for Porto B.
And the youngster cites Porto star Luis Diaz as a role-model: "He's someone I watch".