Tottenham complete the signing of Union Berlin star John - Prince Williams . The 20-year - old Germany youth international joined for a fee of $ 10.8 million . Midfielder Boateng was voted the best young player in Germany last year .
Tottenham complete the signing of Hertha Berlin star Kevin-Prince Boateng . The 20-year-old Germany Under-21 international signs for a fee of $ 10.8 million . Midfielder Boateng was voted the best young player in Germany last year .