Owls youngster Rafael Floro has been called into the Portugese Under-20 international camp scheduled for the early throes of December.
Left back Floro has shown steady progress in S6 since signing a one-year contract last summer.
A Development Squad regular, Floro made his senior debut against Rotherham in the Carling Cup before starting in the Championship for the visit of Burnley.
The 19-year-old has represented Portugal at Under-18 level as well as playing for the youth sides of Sporting Lisbon, Academica, Almansilense, Louletano DC and FC Porto.