Napoli have officially signed 21-year-old Victor Osimhen from Lille for a reported initial fee of £54m.

The 21-year-old Nigerian attacker spent just a single season in France but showed enough to seal a big move to Serie A, with a five-year contract.

Osimhen scored 13 goals in Ligue 1, a figure bettered by only Wissam Ben Yedder, Kylian Mbappe and Moussa Dembele, and set up four more in 27 league appearances.

Osimhen €54m, according to claims in Italy, is Napoli's record signing.