Eurosport - Hoffenheim's Compper challenges Borussia Dortmund's Lewandowski during their German first division Bundesliga match in Sinsheim
"He has been given a contract until 2016," Fiorentina said in a statement.
Compper, who has won one international cap, had been sent to the train with the Under-23 team of relegation-threatened Hoffenheim after what club officials said was a lack of motivation from the player.
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