Dortmund signs Giovanni Reyna, 16, from New York City FC
The Bundesliga club says the 16-year-old Reyna, a midfielder, will move on a free transfer, subject to approval from FIFA as the player is still considered a minor.
Dortmund has also agreed to sign the 16-year-old Bradley Fink, a tall center forward, from FC Luzern on a free transfer for its under-17 side.
Dortmund youth coordinator Lars Ricken says Reyna is "without doubt a huge talent," while Fink "has fantastic ability and recently scored 40 goals in just 21 games for Luzern's under-16s. Numerous big clubs in Europe wanted to sign these two players."
Dortmund is also awaiting final FIFA approval to sign Fink.