Bundesliga club Hoffenheim has signed Ghana midfielder Afriyie Acquah from Italian side Parma.
Hoffenheim says the 21-year-old has signed a four-and-a-half year contract.
Acquah is the third addition to the squad in the January transfer period, after Luis Advincula and David Abraham.
Hoffenheim is 16th in the Bundesliga and seeking to avoid relegation.
Werder Bremen will on Saturday (Sunday AEDT) become the latest side trying to end Bayern Munich's record unbeaten run in the Bundesliga when it goes head to head with the European champion at the Weserstadion.