Schalke have signed promising Duisburg Under-19 striker Joseph Boyamba on a three-year contract.
The 17-year-old, whose deal at the third division club was due to expire in the summer, joins the high-flying Bundesliga side with immediate effect and will remain at the Gelsenkirchen club until 2017.
Duisburg sports director Ivo Grlic admitted he was sorry to see Boyamba leave, but was confident the young German can continue to put into practice at the Royal Blues the skills he has learned at the Schauinsland-Reisen-Arena.
He told Kicker: "Of course it's a shame and a sporting loss that he will move on now.
"But that a club like Schalke catches up with him at this time, only exemplifies the qualities that he has purchased from us."
Schalke, who are fifth in the Bundesliga table after collecting seven points from their last three matches, next take on Wolfsburg - who sit just one point below them - on Saturday.