Tottenham face a summer fight with Borussia Dortmund to sign Hamburg star Heung-Min Son.
The 20-year-old made his Hamburg debut back in 2010 but has made a first-team place his own this season, having scored nine goals in the league so far.
His form alerted the attention of Spurs, who were linked heavily with him during the January transfer window.
Hamburg completed the domestic double over Dortmund this season, and the South Korea international scored on both occasions.
And having seen the damage he can do first-hand, the Bundesliga champions are keen to bring him to Signal Iduna Park.
Son's advisor Thies Bliemeister told Sport Bild: "I have heard of Dortmund's interest. But I do not know any more."
Hamburg, mindful of interest from Schalke and Spurs as well, are desperate to extend Son's contract beyond the summer of 2014.
However, the forward reportedly wants his £780,000 annual salary doubled - and it is unclear if Hamburg will do so, leaving Spurs, Schalke and Dortmund to battle it out for his services.