Nottingham Forest manager Steve Cooper is excited by the potential of Neco Williams
Forest have paid £17m to sign the Wales right-back from Liverpool.
"Despite being only 21, Neco has established himself in the Wales starting XI, said Cooper said.
"He's played in the Premier League, the Champions League and in World Cup qualifiers in the last 12 months and he is a very talented right back.
"We believe that he's got an incredibly high ceiling and that he can play a huge role for us at Nottingham Forest in our return to the Premier League. We're delighted to have him on board."