Former Roma defender Alessio Romagnoli has completed his move to AC Milan.

The youngster joins Milan for €25 million.

“This is the most successful and best club in the world," Romagnoli told the assembled media.

“Now I have to think about myself and doing well on the pitch. I'll try to give my all, everyone at Milan is quality. I have to be calm and try to do my best."

Romagnoli played for Milan coach Sinisa Mihajlovic at Sampdoria.

“The Coach told me if there was a chance he'd take me with him. I spoke with my agent and [Roma sporting director Walter] Sabatini and we managed to get the deal done."