WONDERKID ALEXANDER ISAK SNAP UP BY BORRUSIA DORTMUND
'Alexander Isak is a super-talented wonderkid, who was wanted by numerous top clubs in Europe,' Dortmund sporting director Zorc said.
'We are very glad that he has chosen Borussia Dortmund. BVB is just as convinced as the player that this transfer is one with great potential.'
Christian Pulisic signed a new contract at Dortmund to stay at the club until 2020
'I still have a lot to learn,' Pulisic said. 'I feel Dortmund offers the best conditions to do that.'
Pulisic joined the club from US Soccer Development Academy club PA Classics in February 2015 - is very comfortable playing as a No 10 or wide on the left and has a swift turn of pace.
Pulisic scored twice in 19 games in 2016-17 and already has 11 senior USA caps to his name, with three goals.