Juventus boss Maurizio Sarri says Matthijs de Ligt will improve after victory over Inter Milan.
Paulo Dybala and substitute Gonzalo Higuain secured Juve victory at San Siro, despite a Lautaro Martinez equaliser from the penalty spot.
De Ligt gave away the penalty with a handling offence and struggled on the day.
Sarri said, De Ligt doesn't speak Italian well yet, but he is adapting very quickly to our style of football, our type of defending and has enormous potential, but he is still adapting and that brings difficulties.
Giorgio Chiellini's injury forced us to rush the introduction of this lad and a more gradual process would probably have helped him."
