Hamburg sporting director Frank Arnesen is continuing his raid on former club Chelsea by signing a second player from the London club this week.
Following the capture of Michael Mancienne, the German Bundesliga club have now picked up 19-year old Italian Jacopo Sala.
The attacking midfielder has signed a three-year deal with Rothosen and Arnesen was delighted to welcome him to Imtech Arena.
"Jacopo is a player with a future," Arsenen told Hamburg's official website.
"He has played for all the Italy youth teams and has excellent technical and physical attributes."
Hamburg are also on the radar of another Chelsea player - 19-year old defender Jeffrey Bruma.
