World Cup winner Marco Tardelli believes Romelu Lukaku will return to his best at Inter Milan.

Lukaku scored from the spot in Inter's win against Udinese on Saturday.

Tardelli said: "When he's OK, we'll see the same Lukaku from when he was the best Lukaku, with (Antonio) Conte.

"Up front he protected and made the team step up, Conte's game left him a bit alone."

Inter sit in second place, 15 points behind Napoli.