Eight-time German champions Borussia Dortmund have signed talented young Swedish striker Alexander Isak. The 17-year-old moves from AIK and has put pen to paper on a long-term contract.

Hans-Joachim Watzke, Alexander Isak und Michael Zorc

Due to the fact that Isak is still a minor, the completion of the transfer still requires special approval by world football’s governing body FIFA, which all parties expect to receive very soon.

"Alexander Isak is a hugely-talented striker, who many top clubs in Europe wanted to sign. We are delighted that he has chosen Borussia Dortmund. Both BVB and the player himself are convinced that this transfer has great potential,“ emphasized Borussia Dortmund sporting director Michael Zorc.

Alexander Isak made his debut for Swedish runners-up AIK Solna at the age of just 16 and has since scored 13 goals in 29 competitive appearances. A few weeks ago, he made his full international debut for Sweden and broke the 104-year-old record set by Erik Dahlström as the youngest player to score for the Swedish national team aged 17 years and 113 days. All parties concerned have agreed not to disclose details of the transfer fee.