Chelsea are showing significant interest in West Bromwich Albion wonderkid Leonardo Cardoso.

The 16-year-old is rated very highly by the Baggies and others in the English game.

Football Insider claims that because Cardoso has not signed a professional deal, he can be offered terms by any team when he turns 17 in May.

Chelsea are planning to put in an offer, and other teams may join the race for his signature as well.

The midfielder could follow in the footsteps of Billy Gilmour, who signed from Rangers as a youth player and went on to play for the Chelsea senior team.