According to GiveMeSport, the Blues are looking to sign the 18-year-old striker in the mid-season transfer window as they begin talks to understand the deal. He could also use the interest from Chelsea as leverage to get a better deal at Westfalenstadion.
Real Madrid have reportedly stepped up their interest in Borussia Dortmund teenager Youssoufa Moukoko.
The 14-year-old currently represents Dortmund’s Under-19 side and has notched 13 goals in six appearances in the Under-19 Bundesliga West during the ongoing campaign.
It is understood that a number of clubs are currently monitoring the Cameroon-born youngster’s progress.