Bundesliga - Elia leaves Hamburg for Juventus
Elia moves to Turin for an £8 million fee after signing a four-year contract, and leaves struggling Hamburg bottom of the Bundesliga after four matches of the new season.
"I know a lot about Juventus," Elia said on the club's official website. "This is the biggest club in Italy.
"For me it was very important that the coach [Antonio Conte] wanted me in making this decision."
The 24-year-old, who had grown dissatisfied at Hamburg, rejected the possibility of a move to Galatasaray, as well as a host of clubs from England, where Holland coach Bert van Marwijk was keen to see him go.
"I hope I can do as well as them," said Elia. "I want to show what I can do.
"I know I can bring speed and skill to Juventus, and I hope to score a lot of goals."