Birmingham could attempt to sign Slovenian teenagers Rok Sirk and Miha Blazic after they impressed on a recent trial spell.
The 16-year-old duo are members of the Slovenian Under-17 squad and currently ply their trade for Maribor, who are the reigning champions in their homeland.
Blues boss Alex McLeish offered the pair a chance to train with the Blues Academy for several days and they also featured in a friendly match.
Nusret Jashari, who is the manager of Sirk, revealed that his client did well enough for the Blues to consider making a permanent swoop in the summer.
"For Rok, this is a great opportunity," Jashari told Nogomania.
"It is hard to say anything at this moment but I can confirm that Birmingham City are really satisfied with the effort Rok Sirk has made.
"If Maribor and Birmingham City can find an agreement, then a transfer could be made at the end of the season."